I've just discovered something very interesting about the S3 camera -its ability to use very -and i mean VERY high shutter speeds. I first noticed it in the EXIF data of a shot taken into a misty sun...a shutter speed of 1/10,000th second..so I decided to experiment a little to see what the shortest shutter speed the camera was capable of. I first took a close up photo of 250w infrared bulb filament with the bulb on. The result? A clear picture of the filament at 1/55,000th of a second! The highest I've seen so far is an only slightly overexposed closeup shot of the emitting surfaces of a 5w LED bulb straight on at 1/199,680th of a second!!. That's 1/200,000th of a second!!
This must be near a record for any consumer camera...now to find a use for it Filament photos becme a little boring after a while......
Post the picture?
z3nith66 said:
Post the picture?
Click to expand...
Click to collapse
Yup, curious about the photo too
Sent from my GT-I9300 using xda premium
Picture
Note the almost black LED surround in reality is too bright to see properly by eye, the LEDs are just a blaze of brightness, not discernible by eye. Check the EXIF data for exposure.
http://www.carbontide.com/led.jpg
http://www.carbontide.com/bulb.jpg
You don't have any noise in your picture. How come? :-o
I want my Canon EOS 550 to do that (no more NDs needed)
Noise
DeadSOL said:
You don't have any noise in your picture. How come? :-o
Click to expand...
Click to collapse
I've never noticed much noise in my S3 camera, besides at the reduced size of the images you wouldn't see noise anyway. If you're getting what you feel is 'noise' have you made sure your camera lens covering glass is scrupulously clean?
(BTW before the noise debate rises again I have a Sony module camera in my S3, my wife's S3 has a Samsung camera module and appears to have about the same noise level as noise as mine -both are excellent for such a small sensor)
nokia n8 camera can also do that for you...better than s3 i suppose!
Sent from my GT-I9300 using xda app-developers app
Noise
DeadSOL said:
You don't have any noise in your picture. How come? :-o
Click to expand...
Click to collapse
Here's the original shot that triggered my interest (full sized) taken with my wife's Samsung camera module S3. Not too bad for noise I think, check the clouds -the unresolved distant gravel and mist droplets look like noise but aren't.
http://www.carbontide.com/drive.jpg
kiwi_radical said:
Here's the original shot that triggered my interest (full sized) taken with my wife's Samsung camera module S3. Not too bad for noise I think, check the clouds -the unresolved distant gravel and mist droplets look like noise but aren't.
http://www.carbontide.com/drive.jpg
Click to expand...
Click to collapse
That would make a good homescreen wallpaper!
My wife uses it as her homescreen wallpaper.
kiwi_radical said:
Here's the original shot that triggered my interest (full sized) taken with my wife's Samsung camera module S3. Not too bad for noise I think, check the clouds -the unresolved distant gravel and mist droplets look like noise but aren't.
http://www.carbontide.com/drive.jpg
Click to expand...
Click to collapse
Yeah, I agree. It's a brilliant shot with minimal amount of noise. The S3 does indeed have an excellent camera but it doesn't perform in medium to low light conditions as expected. For example, my friends and I went to a somewhat dimly lit restaurant. Let's say it was just above low light conditions. The camera took rather blurry pictures (as expected of moving subjects in low light conditions) and there was a large amount of noise in the picture.
I've attached the picture (it is cropped a bit at the top). You can see a large amount of noise on the blue table.
Actually, I wonder if the "party/indoor" scene in the camera might have resolved this issue. It seems to be doing quite a fine job on dark indoor pictures right now. Hmmm...
Really???
DeadSOL said:
Yeah, I agree. It's a brilliant shot with minimal amount of noise. The S3 does indeed have an excellent camera but it doesn't perform in medium to low light conditions as expected. For example, my friends and I went to a somewhat dimly lit restaurant. Let's say it was just above low light conditions. The camera took rather blurry pictures (as expected of moving subjects in low light conditions) and there was a large amount of noise in the picture.
I've attached the picture (it is cropped a bit at the top). You can see a large amount of noise on the blue table.
Click to expand...
Click to collapse
Hey come on now, that's low light.and I'd call the amount of noise totally reasonable for a high ISO, low light shot. The level of noise is way below the resolution of the photo..i.e.the noise is sharp the image isn't from camera shake. You're expected a lot from a phone camera. I've been a photographer for 40 years...from long before digital cameras and I'm very happy with the performance of my S3 in low light..I think it's nothing short of marvelous for a phone camera!
Samsung could have easily included more noise reduction for high ISO shots, but it would have reduced resolution, its always a trade off.
If you're worried about noise check out Noise Ninja..(for PC) with it you can select your own trade offs between visible noise and resolution on any given image.
.
Ah, okay. lol. Well, I suppose I have high expectations because I've been using a DSLR a lot for the past few weeks.
I just took a few more outdoor sunlight shots and they're brilliant! So, no big gripes with the camera.
Z3US911 said:
nokia n8 camera can also do that for you...better than s3 i suppose!
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
But it runs on outdated out phased symbian
《tapatalked from galaxy s3》
kiwi_radical said:
I've just discovered something very interesting about the S3 camera -its ability to use very -and i mean VERY high shutter speeds. I first noticed it in the EXIF data of a shot taken into a misty sun...a shutter speed of 1/10,000th second..so I decided to experiment a little to see what the shortest shutter speed the camera was capable of. I first took a close up photo of 250w infrared bulb filament with the bulb on. The result? A clear picture of the filament at 1/55,000th of a second! The highest I've seen so far is an only slightly overexposed closeup shot of the emitting surfaces of a 5w LED bulb straight on at 1/199,680th of a second!!. That's 1/200,000th of a second!!
This must be near a record for any consumer camera...now to find a use for it Filament photos becme a little boring after a while......
Click to expand...
Click to collapse
how about the possibility that the EXIF data might be wrong? how else can you verify the true speed with what the EXIF says? shoot a hummingbird in mid flight?
bala_gamer said:
But it runs on outdated out phased symbian
《tapatalked from galaxy s3》
Click to expand...
Click to collapse
oo yeah! symbian is **** like hell.
but we r talking abt camera here
Sent from my GT-I9300 using xda app-developers app
EXIF validity
lukesky said:
how about the possibility that the EXIF data might be wrong? how else can you verify the true speed with what the EXIF says? shoot a hummingbird in mid flight?
Click to expand...
Click to collapse
Firstly experience tells me it's very bright...after all 1/200,000th @ F2.6 is roughly the same as 1/6000 @ f16 which is about 35 times brighter than full sunlight on a 18% gray card...that seems reasonable.given that it's looking right into a very bright light.
Second, I then metered it with my DSLR and got 1/8000th @ F22 at 100 ISO which equates to 1/256,000 @ F4 which is close enough for me.to the S3's overexposure at 1/200,000th @ F2.6 at ISO80
So I think it's both using a real 1/200,000th, and writing the EXIF data correctly.
Z3US911 said:
nokia n8 camera can also do that for you...better than s3 i suppose!
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
+1
Love n8 camera.. but i hate it OS.. LOL
bala_gamer said:
But it runs on outdated out phased symbian
《tapatalked from galaxy s3》
Click to expand...
Click to collapse
yeap, but the camera is still great :good:
Related
Hi there, not sure if this is a common problem or not.
Whenever I take a photo on the phone it appears okay, but when I start to zoom in it comes out really blurry. The camera's set to 13mp and even on 9.6 it's blurry too. Is it like this for everyone?
Welcome to the primary drawback of digital zoom.
Sent from my GT-I9505 using xda app-developers app
The quality will get more poor whenever you zoom in. I haven't had any issues with poor quality while zooming yet, but I'll have an eye open for it.
Pagnell said:
Welcome to the primary drawback of digital zoom.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
Haha, I meant after I'd taken the picture. Back when I owned an iPhone 4 a couple years ago, zooming in after taking the picture was still crystal clear, and that was only a 5 megapixel camera..
samb222 said:
Haha, I meant after I'd taken the picture. Back when I owned an iPhone 4 a couple years ago, zooming in after taking the picture was still crystal clear, and that was only a 5 megapixel camera..
Click to expand...
Click to collapse
Well... I think I get what you mean, and it has to do mainly with the resolution of the screen. When visualising pictures in a FullHD screen (2MP) the available real size is "only" 2.5times the display size on each direction. (Screen is ~2kx1k, 13MP is ~5kx2.5k pixels). And when you zoom in you quickly reach (and surpass) the real (sharp) size.
With an old phone (say 800x480) you had plenty of zooming to do before reaching the 5MP size.
The complementary reason to this is that the camera 13MP sensor is not proportionally sized with respect to good 8MP ones.
Having said all this, I find the quality of the S4 pictures to be OUTSTANDING for a mobile device.
pintycar said:
Well... I think I get what you mean, and it has to do mainly with the resolution of the screen. When visualising pictures in a FullHD screen (2MP) the available real size is "only" 2.5times the display size on each direction. (Screen is ~2kx1k, 13MP is ~5kx2.5k pixels). And when you zoom in you quickly reach (and surpass) the real (sharp) size.
With an old phone (say 800x480) you had plenty of zooming to do before reaching the 5MP size.
The complementary reason to this is that the camera 13MP sensor is not proportionally sized with respect to good 8MP ones.
Having said all this, I find the quality of the S4 pictures to be OUTSTANDING for a mobile device.
Click to expand...
Click to collapse
Ah that makes more sense, thanks
Which mode/settings do you use? My pictures are good but nothing spectacular.
samb222 said:
Ah that makes more sense, thanks
Which mode/settings do you use? My pictures are good but nothing spectacular.
Click to expand...
Click to collapse
I usually leave it on Auto Mode although some times I do have to lower the ISO level because it tends to like high ISO values unnecessarily. I'm not a Pro photographer though.. there's probably some thread about tips and tricks to get the best out of it.
Thanks.
Post a full res picture here so we can see if they're ok.
exec99 said:
Post a full res picture here so we can see if they're ok.
Click to expand...
Click to collapse
This picture came out surprisingly well for a change haha. Still interested on your opinions though
Have you removed the plastic lens protector?. To do so, remove the back plate and proceed carefully with your fingernail
inolvidable said:
Have you removed the plastic lens protector?. To do so, remove the back plate and proceed carefully with your fingernail
Click to expand...
Click to collapse
Yep, removed it
I'm getting lots of softness and graininess on the front camera.
I'm having the same problems with the front camera. It's so frustrating as it didn't happen with the S2!!
I mean it in a literal sense.
If you look at the image below, youll be able to see that its a bit blurry,
I've drawn 2 black lines in the image, notice that the top and the bottom is blurry and the center is focused.
It doesnt occur alot, but it does happen and sometimes even in videos.
Any help as to why? Perhaps 4.2.2 might fix this?
I think the DOF is so narrow because the lens has a wide aperture of F2.0 which helps in low light.
RoSonic_ said:
I think the DOF is so narrow because the lens has a wide aperture of F2.0 which helps in low light.
Click to expand...
Click to collapse
Can you explain what DOF is?
Is there anyway I could fix it? You think anyone else has this problem?
"depth of field (DOF) is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image." - (http://en.wikipedia.org/wiki/Depth_of_field)
And I don't think it's a problem. It's just how the lens is made with a large aperture to allow more light in to the image sensor.
You could try to compensate this a bit by increasing the sharpness from the camera menu.
I'd be more concerned with the poor dynamic range shown in the top of the pic. ;O)
Sent from my HTC One using Tapatalk 4 Beta
That`s totally normal for the one, it only exposes the focus point, instead of the whole image, could htc not have given us a choice
John.
americasteam said:
I'd be more concerned with the poor dynamic range shown in the top of the pic. ;O)
Sent from my HTC One using Tapatalk 4 Beta
Click to expand...
Click to collapse
Tinderbox (UK) said:
That`s totally normal for the one, it only exposes the focus point, instead of the whole image, could htc not have given us a choice
John.
Click to expand...
Click to collapse
Well that sucks. One of the reasons I bought this phone was for the camera.
Do you know anyway I could fix this? or atleast minimize it?
The problem is when the image contains both dark and bright areas, if you focus on the bright, the dark areas will be underexposed and if you focus on the dark the bright areas will be overexposed, you need to find an area to focus on that will give you an average exposure for the entire image.
I have the same problem, but some photo`s are amazing and some are utter crap.
Try using hdr mode, it takes multiple images at different exposure levels and then integrates them into one photo, but you need to keep the phone very steady, hopefully HTC will fix this problem.
John.
uzman1243 said:
Well that sucks. One of the reasons I bought this phone was for the camera.
Do you know anyway I could fix this? or atleast minimize it?
Click to expand...
Click to collapse
Mine does this as well. Easiest fix I've come across is just tapping on the screen in the area you want focused...it seems to hold focus better after the first time and the photos look a lot better.
Problem is, I generally forget about this until after the first picture is taken without it. So it's a process for sure.
Sent from my HTC One using xda premium
Has anybody tried some other camera apps from the play store, maybe we can find one that exposes correctly, i wish the one had my nikon`s matrix metering
John.
---------- Post added at 06:53 PM ---------- Previous post was at 06:46 PM ----------
I bought this Camera Zoom FX app for £0.50p on sale that i never used, i think it`s about time i tried it.
John.
Mine is the same way. Wasn't bashing the camera was just giving my first impression of the pic posted. I think the camera is excellent for a phone. Small sensor and tiny optics will only go so far. This device is fantastic as an overall package.
Sent from my HTC One using Tapatalk 4 Beta
The sensor is great for a phone camera, but the software that does the exposure is very very poor or am i missing something???
John.
You rack focus
Sent from my HTC One using xda premium
Why are all you guys saying this is normal? Either you have defective phones or you don't know how to take pictures! ... The only time my One does this is when I use touch to focus on Macro mode. I have taken hundreds of pictures and no pictures look like yours unless I wanted them to.
Agreed. The picture in the OP looks like an issue with OIS, not depth of field.
If it was a one time thing then this thread doesn't need to exist. If it happens a lot the phone needs to be replaced.
Sent from my HTC One using xda app-developers app
NxNW said:
Agreed. The picture in the OP looks like an issue with OIS, not depth of field.
If it was a one time thing then this thread doesn't need to exist. If it happens a lot the phone needs to be replaced.
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
Well its not a repetitive condition but occurs once in a while. Even in videos.
Try camera fv-5 from playstore. DSLR style camera app with multiple metering modes.
Sent from my HTC One using Tapatalk 4 Beta
AllAboutTheCore said:
Why are all you guys saying this is normal? Either you have defective phones or you don't know how to take pictures! ... The only time my One does this is when I use touch to focus on Macro mode. I have taken hundreds of pictures and no pictures look like yours unless I wanted them to.
Click to expand...
Click to collapse
I do think it's a flaw in the camera software that exposure and focus can't be decoupled. I LOVE the shallow depth of field but can't use it property because touching-to-focus blows out highlights.
uzman1243 said:
I mean it in a literal sense.
If you look at the image below, youll be able to see that its a bit blurry,
I've drawn 2 black lines in the image, notice that the top and the bottom is blurry and the center is focused.
It doesnt occur alot, but it does happen and sometimes even in videos.
Any help as to why? Perhaps 4.2.2 might fix this?
Click to expand...
Click to collapse
Most of these comments come from people who have no idea what they're talking about.
Your phone is perfect. Nothing wrong with it. All you did was tap to focus on the middle of the picture.
This did 2 things.
1. It will FOCUS on the center of the pic. Other areas will be blurred. Hence the term, focus. That's how cameras work.
2. The exposure was adjusted to where you focused it to. What does that mean?
If you focused on a light area the camera will adjust the exposure to compensate. What that means is if it's light, the camera will darken the overall image. Lights become darker, farms become darker.
If the photo is focused on a dark area, the camera will adjust the photo by making the dark area brighter and the bright areas, as a result, brighter. Which is why you have super white skies.
To fix it, go to the camera settings and I think select touch to capture. But to say fix means it's a problem.
It's not.
For landscapes, use landscape mode which will focus on the entire image and bot blur. Also you can tap on the area where you want adjusted, ie brighter or darker. Blur again is only cause you focused. Don't focus on landscapes.
Photographer here. Focus on this comment and not anyone who says your phone is messed up. This is why.
Take a look at my two attached photos. One I clicked on the sky and the other I clicked on the grass. Light then dark. Can you figure out which was which and see what happened to the photo?
Note that it was overcast and cloudy. There were NO BLUE SKIES. it was grey. So the sky wasnt killed by the camera
Btw don't always use Hdr. Don't. Its not a saving grace every time. If you shoot in the sun you're shooting in the sun. Photography rule #1: DON'T.
ALWAYS USE THE SCENES WHEN YOU CAN. WHICH IS WHY THEYTE THERE AND EXIST. SLRS HAVE THEM TOO FKR A REASON!
As for the lines, panorama? Did you move too fast? That's what happens when you do - camera can't stitch properly
Sent from my HTC One
chc31 said:
Most of these comments come from people who have no idea what they're talking about.
Your phone is perfect. Nothing wrong with it. All you did was tap to focus on the middle of the picture.
This did 2 things.
1. It will FOCUS on the center of the pic. Other areas will be blurred. Hence the term, focus. That's how cameras work.
2. The exposure was adjusted to where you focused it to. What does that mean?
If you focused on a light area the camera will adjust the exposure to compensate. What that means is if it's light, the camera will darken the overall image. Lights become darker, farms become darker.
If the photo is focused on a dark area, the camera will adjust the photo by making the dark area brighter and the bright areas, as a result, brighter. Which is why you have super white skies.
To fix it, go to the camera settings and I think select touch to capture. But to say fix means it's a problem.
It's not.
For landscapes, use landscape mode which will focus on the entire image and bot blur. Also you can tap on the area where you want adjusted, ie brighter or darker. Blur again is only cause you focused. Don't focus on landscapes.
Photographer here. Focus on this comment and not anyone who says your phone is messed up. This is why.
Take a look at my two attached photos. One I clicked on the sky and the other I clicked on the grass. Light then dark. Can you figure out which was which and see what happened to the photo?
Note that it was overcast and cloudy. There were NO BLUE SKIES. it was grey. So the sky wasnt killed by the camera
Btw don't always use Hdr. Don't. Its not a saving grace every time. If you shoot in the sun you're shooting in the sun. Photography rule #1: DON'T.
ALWAYS USE THE SCENES WHEN YOU CAN. WHICH IS WHY THEYTE THERE AND EXIST. SLRS HAVE THEM TOO FKR A REASON!
As for the lines, panorama? Did you move too fast? That's what happens when you do - camera can't stitch properly
Sent from my HTC One
Click to expand...
Click to collapse
The black lines on the image, I DREW to show where it gets blurred (not panaroma).
You're right, but when I focus on the center, all objects in the background should get blurred right? I mean thats how the focus works. You focus on a particular subject (lets assume in the foreground) the objects in background gets blurred.
If you see the image I uploaded (in the top line) the upper part of the tree is blurred and the lower part is focused.
It doesn't work like that right?
Hi everyone,
I'm having a problem with my Samsung Galaxy S4.
The front camera is producing blurred photos, almost as if they have been automatically edited/badly Photoshoped.
Before I capture a photo, the quality looks normal.
I've made sure the lens is clean and there is no plastic covering the lens. The same happens with Instagram... quality looks fine before capturing and then the same awful result afterwards.
Any help would be great!!
Anyone?
Can you post any photos you took with the front camera?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
[email protected] said:
Can you post any photos you took with the front camera?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the reply!
Here is an example.
This is on the highest possible resolution but the same thing happens with every option. The quality is absolutely fine before I capture the photo and then, as you can see, it's as if a soft blur filter is added.
Any ideas?
Bump!
I think it's because the post procesing, which tries to reduce the noise for the cost of details (blury).
Try to take some photos in brighter enviroment.
ongbac said:
I think it's because the post procesing, which tries to reduce the noise for the cost of details (blury).
Try to take some photos in brighter enviroment.
Click to expand...
Click to collapse
That sounds about right.
I was trying out different apps and Snapchat captures what is on the screen and doesn't apply any after effect.
Have you got any ideas about how I can change some settings or something?
Bump!
Anyone?
Sent from my GT-I9505 using xda app-developers app
It's the camera. There's a definite lack of sharpness, and it happens on every ROM, so it's not software related.
Having the same issue.
Under good lighting, it's decent.
But under low light, or even under normal room lighting conditions, the image becomes grainy.
Even my previous S3 takes sharper and clearer images.
andrewhahalee said:
Having the same issue.
Under good lighting, it's decent.
But under low light, or even under normal room lighting conditions, the image becomes grainy.
Even my previous S3 takes sharper and clearer images.
Click to expand...
Click to collapse
Exactly. I just upgraded from S2 and never had these problems. My software has just updated but with no effect.
S4 Front camera, STRANGE.
Hi,
I was having problems with my S4 trying to make an ordinarily phone call. The phone seamed sluggish and my voice did not go through once I was connected. So, I switched to hangouts. I made a video call so I was expecting to see myself in the small picture on my screen. I did see a zoomed picture in good quality? Better quality I ever had seen before! I was surprised to see a good quality zoomed picture under poor light conditions. Since I am a computer guy I realized that something is fishy so I looked for an appropriate forum to put this story in.
My question is since you are talking about a suspected software filter. Are we without our knowing it have better camera performance than we the user are allowed to use? I do not buy the ROM explanation of the problem.
/duediligence
S4 Front camera, STRANGE.
Hi.
I had an encounter with something, well, alarming.
I had some problems making an ordinary phone call, sluggish phone, so I switched to hangouts instead.
I made a video call to my friend. For some reason the phone had not stopped being funny. In the small picture, the one of me, I saw something I never had seen before. Instead of the expected streamed image of me I had a zoomed in version in surprisingly good quality! I could see holding my phone, S4, at 30 to 40 cm distance my mouth covering the with of the image.
Question: I looked for an appropriate forum and thread before posting. Since you are here talking about the poor picture quality of the front camera being manipulated by a software filter you might be intrigued like me about this observation I had by chance stumbled up on.
My question is whether the cameras on our phones have capabilities we are not aware of?
/duediligence
Hi Everyone,
Have a look at attached example image to see what I mean.
Please try to take a manual shot with your wide lens in a very dark environment with very high ISO (3200 in example) and exposure time of 5secs plus (20 secs in example).
Everyone who has tried that so far has the same issue, a big purple shadow on the top. It's most likely the laser and it won't happen with the normal lense.
Do you have the same result? Any suggestions what we can do about it?
Whoa! I haven't seen that in a long time. I think maybe around the time of the Nikon D80. I can't currently try this out personally but by the sounds of it what has happened is called Amp Glow. It's when you kind of start getting out of the bounds of what is really acceptable shooting conditions for a given sensor. In this case, if you really are shooting in conditions that call for high ISO AND still need a shutter speed of 20 seconds and the image still comes out that dark, then you're way beyond realistic expectations for shooting with a cellphone. In the older DSLRs, people would see it when doing star trail photos that were 10 minutes or longer. Frame stacking software became the solution to this problem by taking a lot of shorter photos and stacking them up and pulling through the new dots of light. (And this is still used by a lot of photographers as it also gets rid of other forms of noise.)
So what is happening? ISO is pretty much the gain. It's the amplification being applied to the signal coming off of the sensor. Ideally with ANY camera, you want to stay as close to the base ISO of a given sensor. That's usually the lowest ISO number. (There are some exceptions where some camera manufacturers have done some trickery to get a lower ISO to show up but that was short lived as it didn't really help things.) Unfortunately, image sensors are not hanging in space. They're packed in with a ton of other stuff. Stuff that gets warm. If that stuff is near an edge of the sensor, that heat bleeds into the sensor and then those warmed pixels get amplified by the higher ISO and next thing you know, Amp Glow. Well, that's the simplified version at least.
A cellphone, any cellphone, is not designed for those kinds of shots. If they were, they would have a tripod mount, a much better flash, and a much larger sensor. (Yeah, the flash on your cellphone is not meant to light up stuff much past 5 feet. Even the ones built into a DSLR aren't meant for much past about 15-20 feet.) The reality is that cellphones are designed for handheld shots with decent light. Even the larger sensor used in some cellphones shouldn't be expected to pull any miracles that top end DSLRs are just barely pulling off cleanly. For that shot, you would want to use a dedicated camera locked down on a tripod using base ISO and long exposure at the very least. Although, personally, I'd probably just take a pass on that shot.
someone on reddit has the exam same issue with the wide angle. and someone said it's in the regular too. weird. my s7 never had this purple hue when I did even 30 second exposure at night.
Sent from my LG V20 US996
something obstructing the lens maybe, or just camera went bad
Better hope this isn't the same problem the HTC one m7 had with the purple haze. The culprit was a light sensor on the camera would overhear and give a purple haze on the screen in low light. Place the phone face down and with the camera on and see if the purple comes back.
Sent from my LG-H910 using Tapatalk
Dark Jedi said:
Better hope this isn't the same problem the HTC one m7 had with the purple haze. The culprit was a light sensor on the camera would overhear and give a purple haze on the screen in low light. Place the phone face down and with the camera on and see if the purple comes back.
Click to expand...
Click to collapse
No, it won't happen with the same ISO/Shutter settings I took the previously attached photo. But maybe that's because it's not dark enough. Did the M7 issue only happen in dark enviornment as well?
CHH2 said:
Whoa! I haven't seen that in a long time. I think maybe around the time of the Nikon D80. I can't currently try this out personally but by the sounds of it what has happened is called Amp Glow. It's when you kind of start getting out of the bounds of what is really acceptable shooting conditions for a given sensor. In this case, if you really are shooting in conditions that call for high ISO AND still need a shutter speed of 20 seconds and the image still comes out that dark, then you're way beyond realistic expectations for shooting with a cellphone. In the older DSLRs, people would see it when doing star trail photos that were 10 minutes or longer. Frame stacking software became the solution to this problem by taking a lot of shorter photos and stacking them up and pulling through the new dots of light. (And this is still used by a lot of photographers as it also gets rid of other forms of noise.)
So what is happening? ISO is pretty much the gain. It's the amplification being applied to the signal coming off of the sensor. Ideally with ANY camera, you want to stay as close to the base ISO of a given sensor. That's usually the lowest ISO number. (There are some exceptions where some camera manufacturers have done some trickery to get a lower ISO to show up but that was short lived as it didn't really help things.) Unfortunately, image sensors are not hanging in space. They're packed in with a ton of other stuff. Stuff that gets warm. If that stuff is near an edge of the sensor, that heat bleeds into the sensor and then those warmed pixels get amplified by the higher ISO and next thing you know, Amp Glow. Well, that's the simplified version at least.
A cellphone, any cellphone, is not designed for those kinds of shots. If they were, they would have a tripod mount, a much better flash, and a much larger sensor. (Yeah, the flash on your cellphone is not meant to light up stuff much past 5 feet. Even the ones built into a DSLR aren't meant for much past about 15-20 feet.) The reality is that cellphones are designed for handheld shots with decent light. Even the larger sensor used in some cellphones shouldn't be expected to pull any miracles that top end DSLRs are just barely pulling off cleanly. For that shot, you would want to use a dedicated camera locked down on a tripod using base ISO and long exposure at the very least. Although, personally, I'd probably just take a pass on that shot.
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Thanks a lot for the detailed explanation. My question here would be, why doesn't it happen to other phone-cameras with similar settings?
Kujoja said:
No, it won't happen with the same ISO/Shutter settings I took the previously attached photo. But maybe that's because it's not dark enough. Did the M7 issue only happen in dark enviornment as well?
Thanks a lot for the detailed explanation. My question here would be, why doesn't it happen to other phone-cameras with similar settings?
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Yes the m7 only happened in low light / dark environment. Do a Google search for HTC one m7 purple haze. What caused me not to buy another htc phone
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Kujoja said:
No, it won't happen with the same ISO/Shutter settings I took the previously attached photo. But maybe that's because it's not dark enough. Did the M7 issue only happen in dark enviornment as well?
Thanks a lot for the detailed explanation. My question here would be, why doesn't it happen to other phone-cameras with similar settings?
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Settings aren't the only part of the equation. The other par is the placement of other components within the device. I need to look at the tear downs to see how the various parts are placed next to each other but something is heating up and passing that heat to the sensor. Just off the top of my head there are four parts together; the two camera sensors, the laser focus module, and the flask module. Each one of those on its own will generate heat if used enough.
Dark Jedi said:
Yes the m7 only happened in low light / dark environment. Do a Google search for HTC one m7 purple haze. What caused me not to buy another htc phone
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It's the same issue. I haven't looked at the HTC issue but from your description of it, it's the same. Amp glow is what it is called in digital photography. (OK, silly that I said digital as you don't get amp glow in film.) The glow will show up because there is no other data coming off of the sensor for those pixels and the heat is amplified as "data".
---------- Post added at 05:15 PM ---------- Previous post was at 04:59 PM ----------
Ok, just watched the JerryRigEverything repair tear down. The flash module sits right next to the wide angle and the laser focus next to the regular sensor. There is no mention as to what is sitting next to the sensors on the main board but I see silver boxes on each side with one having some sort of black and yellow warning sticker. Not sure what they are so I can't rope them in as culprits. So for now, I'd say it's a combo of the four units of the camera assembly.
Were you running the flash or one of the cameras a lot while you were playing around? Shooting a lot of long exposure shots in a row?
I'll get to test out some night shots and video tonight at a lighting ceremony but I'm still not expecting to shoot 3200 for 20 seconds type shots. Again, that's pretty extreme.
Anyone else notice how the front cam isn't so sharp at times? If I am not holding my phone from the same direction as the light source, the pics are kinda blurry. It's currently 10am where I am and the sun is shining bright yet this camera is producing low quality images while indoors like there isn't enough light though there is. It's as if the light needs to shine directly into the sensor to create sharper images. My Nexus 6p took way better pics in low and even no light. I will post pics from both devices for comparison. Anyone else care to post some as well?
vlug said:
Anyone else notice how the front cam isn't so sharp at times? If I am not holding my phone from the same direction as the light source, the pics are kinda blurry. It's currently 10am where I am and the sun is shining bright yet this camera is producing low quality images while indoors like there isn't enough light though there is. It's as if the light needs to shine directly into the sensor to create sharper images. My Nexus 6p took way better pics in low and even no light. I will post pics from both devices for comparison. Anyone else care to post some as well?
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I had an issue with the screen protector i had put on..it was covering the front cam and due to finger print smudges the selfie pics were coming blurry.i removed that protector and now it looks quite good. Jist check if ur front camera is not getting smudged with finger prints.
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Nah, I have a very nice microfiber cloth I cleaned it with several times before posting this. It's just a strange thing with the lighting. I feel as if the camera just isn't good without all of the light available going into the sensor. Give me some time to get these pictures in order. You will see what I mean
vlug said:
Anyone else notice how the front cam isn't so sharp at times? If I am not holding my phone from the same direction as the light source, the pics are kinda blurry. It's currently 10am where I am and the sun is shining bright yet this camera is producing low quality images while indoors like there isn't enough light though there is. It's as if the light needs to shine directly into the sensor to create sharper images. My Nexus 6p took way better pics in low and even no light. I will post pics from both devices for comparison. Anyone else care to post some as well?
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I noticed this. Here is a pic I snapped yesterday, definitely soft, https://photos.google.com/share/AF1...?key=c3QtZHpLdlNWRjVkNXNtUWpua2hGN240em82UElR I went into the settings and had to adjust the Skin tone, it was on 2. 0 seems clearer? I'll have to test. FFC is the Sony IMX320 (rear is Sony IMX333) on mine.
TheBrandonWRX said:
I noticed this. Here is a pic I snapped yesterday, definitely soft, https://photos.google.com/share/AF1...?key=c3QtZHpLdlNWRjVkNXNtUWpua2hGN240em82UElR I went into the settings and had to adjust the Skin tone, it was on 2. 0 seems clearer? I'll have to test. FFC is the Sony IMX320 (rear is Sony IMX333) on mine.
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Yea, the 0 setting is none while 8 is extremely smooth. Here's a pic I just snapped. https://goo.gl/photos/tGDJtMX7Xt821oBU8
This picture isn't sharp by no means. Soft as you described it. This is disappointing. Coming from a two year old phone.
This is mine with skin tone set to 0
https://goo.gl/photos/qLtbwWbamJqUe9Qi9
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---------- Post added at 11:27 PM ---------- Previous post was at 11:26 PM ----------
rocku_dj2000 said:
This is mine with skin tone set to 0
https://goo.gl/photos/qLtbwWbamJqUe9Qi9
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It is indoor..so lighting is quite low..but i think it came out quite well..decently sharp
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Is the shape correction on? I disabled it on mine, now pics with the front camera seem sharper.
GibMcFragger said:
Is the shape correction on? I disabled it on mine, now pics with the front camera seem sharper.
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Even i didn't use shape correction
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vlug said:
Yea, the 0 setting is none while 8 is extremely smooth. Here's a pic I just snapped. https://goo.gl/photos/tGDJtMX7Xt821oBU8
This picture isn't sharp by no means. Soft as you described it. This is disappointing. Coming from a two year old phone.
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Agree. There has to be an update as this has a killer sensor.
Sounds like the issue that plagued some GS7 units as well. Sad to see
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I thought it was just me or the lighting in my room here. Definitely seems like the focus is off and they all come out somewhat blurry. Big draw for me was getting this to get better group selfies (don't judge). I hope a firmware update fixes this.
Devhux said:
Sounds like the issue that plagued some GS7 units as well. Sad to see
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After doing research, it seems to be the exact same issue. I read where someone had taken their S7 to best buy and compared it with other display units or something like that. Their results were that another device had an okay camera and then another was bad just like theirs... Or something like that lol. Can't remember currently. Either way, this camera is butt ???