Camera (HDR) lag? - Nexus 4 Q&A, Help & Troubleshooting

I used my phone extensively last night at the Christmas Tree lighting event in San Francisco. It was the first time I experienced the camera not playing nice. It's not been an issues until now. I had a hard time snapping pictures as it became non-responsive and at times very laggy. I'd have to hit the home button and start the camera to get it working again. I don't know if it had anything to do with the HDR mode. I switched back and forth better normal mode and HDR. It was at a very low light situation. The only other time my phone lags is when it's hot (note: not warm but hot) but that's a separate issue. Have any of you guys experienced such a thing?
Sometimes the on screen menus freeze or none of the different modes work.

HDR is slower (that happens when you take a bunch of shots at different exposures and then blend them together) and it processes in the background so if you take a bunch of shots in succession it will slow the phone down.

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Camera

Hi,
Is there any possibility to speed up the camera?
No.
Damn, why does this forum force me to make my message at least 10 characters long...?
Switch off the shutter sound.
Have you tried this,while you are in camera mode turn off the PDA wait for ten seconds and then turn it back on,you will notice that while the image is somewhat darker the framerate does not lag when you move the phone, its more noticeable when you are in a not very well lit room.
Actually what you mention works better when in camera mode you turn it off, cover the lens with your hand, then turn it on with your hand still covering the lens, wait a second or two then use the camera. while the image quality isn't as great because it's low light, frame rate is much faster. but the moment you point at some bright light, it resets again. kind of a lame hack but what are we gonna do...
if you're in a bright light situation, such as outdoors on a sunny day, frame rate is fine.
Try this from the Kaiser forum. It worked on older roms.
http://forum.xda-developers.com/showthread.php?p=2139190#post2139190

Green screen in stock camera FIXED

I've been having this problem when every few photos, just a plain green picture is taken. And sometimes there are distorted colors. I decided to play around with the settings to check if it changes anything.
I found out that the problem is keeping the focus mode in Continuous Auto focus. Keeping it in this mode apparently has problems which are the green photos, distorted colors, and around 2 seconds of lag between the shutter and the photo being taken.
Keeping it on Auto took off 2 of the problems which were the green photos and distorted colors. But it was still kind of laggy, I think it's supposed to be this way though to have time for it to focus
Putting it on Infinity fixed all of it, I took over 20 photos without any problem or lag.
I don't know why that problem occurred, but it's probably just the camera firmware and not a hardware problem.
Hope I got to help

Flash darkens photos?

Anyone else observing that when they take a pic with the flash on in "medium" light conditions, the photo comes out actually darker than if the flash wasn't even used?
I swear the timing of the flash is bad on my S5. When I tap the button to shoot the photo, the flash turns on and the image on the screen looks bright and good. But then I think the photo is actually taken a split second later after the flash has turned off, and the photo that gets taken is dark as hell. I think I've tried all the combination of settings in the default S5 camera app, and nothing helps.
Brent212 said:
Anyone else observing that when they take a pic with the flash on in "medium" light conditions, the photo comes out actually darker than if the flash wasn't even used?
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I haven't seen this with my S5. Unfortunately you didn't elaborate on your camera settings, camera version or other crucial details.
At a guess, and it is only speculation since we don't have your details, you are expecting the flash to act like a fill flash. When the auto mode (which is probably what you are using) probably uses the flash in a conventional manner i.e. a fixed shutter speed (or limited shutter speed range). There are good reasons for that, but the net effect if the subject is outside of the flash range is that little of the flash is reflected back and the (presumably) higher shutter speed lets less total light in resulting in a darker picture.
You can test that thesis by taking some pictures of a subject that is very close to the camera. If the problem goes away with close subjects that implies that the problem is an artifact of using flash for a subject that is too distant for the flash to work with. No flash can work at an unlimited distance which is why people using a flash in a stadium when they are 75 meters from a subject is silly. In this case, flash mode simply isn't appropriate to the situation you are using it in and you'd be farther ahead to use a slower shutter speed, without flash.
It's highly unlikely that a bug would see the shutter opening after the flash.
.
It happens with literally *every* combination of the settings in the camera app (with flash set to "on"). Auto mode, beauty face mode... actually, are there any other modes that I'd use to take a picture of something 3 feet away in a darkish room? I have panorama, "shot & more", virtual tour... those wouldn't be right, correct? So both beauty face and auto, with all the combination of settings... hdr on/off, stabilization on/off, iso at auto and all four "manual" options, all three metering modes... nothing makes a difference.
The problem is the same all the times -- it's not just that the non "subject" areas are dark -- the whole image is dark, just like if you turned off the light in a room and snapped a pic at the moment when the light was still on at 50% brightness as it's turning off. It's super annoying just because of how damn good the image looks on the screen when the photo is being taken... it even seems to "snap" the shot at the right time... the shutter sound goes off and the little border animation happens when the pic is nice and bright. Then I open the actual image and it's garbage.
I was hoping someone might know of some setting in a config file somewhere for a delay between when the flash is triggered and when the camera attempts to capture the image, and that maybe mine got changed somehow to a larger than optimal value.
My wife has an s5, I'll have to test with hers and see if it suffers from the same problem.
Long story short: the camera is using a fast exposure time to keep the subject from being "blown out", i.e. overexposed, when the flash is used. That means that the foreground is going to be sharper but anything in the background will be lost in darkness if the ambient lighting is low. When you leave the flash off, the camera will use a longer exposure time (or shutter speed, if you will) to allow enough light, which also lets more of the background be seen in the picture.
Another thing to consider is that if your screen is set for auto brightness control, you will not have the same brightness when viewing the gallery pictures that you will when looking at the camera view. The camera view is full brightness at all times, but if you're viewing the pictures that you took in the gallery, screen brightness will drop down according to ambient lighting. Photos definitely look dark if you're looking at the gallery by lamp light.
Marlin29 said:
Long story short: the camera is using a fast exposure time to keep the subject from being "blown out", i.e. overexposed, when the flash is used. That means that the foreground is going to be sharper but anything in the background will be lost in darkness if the ambient lighting is low. When you leave the flash off, the camera will use a longer exposure time (or shutter speed, if you will) to allow enough light, which also lets more of the background be seen in the picture.
Another thing to consider is that if your screen is set for auto brightness control, you will not have the same brightness when viewing the gallery pictures that you will when looking at the camera view. The camera view is full brightness at all times, but if you're viewing the pictures that you took in the gallery, screen brightness will drop down according to ambient lighting. Photos definitely look dark if you're looking at the gallery by lamp light.
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That's interesting stuff, but doesn't really apply to the problem I described (at least the first part... the screen brightness setting stuff is potentially related, but isn't in my case). The exposure time is fine, it's just **when** the exposure starts that is the problem... a little too late, IMO. Really wish there was a way to adjust when it takes the photo in relation to when the flash is fired.
The foreground objects aren't lit up at all. No difference between foreground and background. Sometimes, I'm taking a picture of a t-shirt laying on a flat surface from 2 feet away. Without a flash it looks pretty good, but it's a little dark so I decide to try the flash to see if it'll lighten it up a bit. Instead, it makes it look like I turned out half the lights in the room.... way darker than no flash.
Same here, three friends of mine too.
I'm having the same problem s5 neo
I just figured out how to correct the pics from coming out dark. Go into camera-settings-exposure value-slide to the right to 2.5 or more.My pics come out fine now. Indoor light normal daylight.( with flash off.) I will know more in other settings (places ,situations )if it needs to be tweaked again.
no problems here
my settings are AUTO MODE
flash AUTO
no effets at all
and still i get good shots in night
Power/current draw issue?
Mine was doing this, and I noticed the first flash (ranging) was fine, but the second flash (to illuminate the image when taken) was much weaker. Whilst plugged into charge, repeated low light experiment, and the low light flash illuminated image was fine!! Maybe battery on its way out?

Weird dark stripes in pro mode with fast shuttle speed

Anyone experiencing this problem? As I lower the shuttle speed past 1/125, the vertical dark lines would be more apparent.
Go outside and try it without artificial lighting.
If you have fluorescent lights, these lights flicker at an extremely fast speed so as the camera shutter closes it can actually capture the darkness between the flickers, which is the most likely culprit here. Same reason videos of old CRT screens look like there are lines running down them - the camera sees the times between the screen refreshes.
AXiDER said:
Go outside and try it without artificial lighting.
If you have fluorescent lights, these lights flicker at an extremely fast speed so as the camera shutter closes it can actually capture the darkness between the flickers, which is the most likely culprit here. Same reason videos of old CRT screens look like there are lines running down them - the camera sees the times between the screen refreshes.
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It isn't flickering at all actually. The dark stripes stay on the same spot no matter where I move it.
I am having the same issue in pro mode on fast shutter speed. Any solution guys?
hungdinh1 said:
It isn't flickering at all actually. The dark stripes stay on the same spot no matter where I move it.
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Could still be the lights, and I'm not familiar with this at all (so correct me if I'm wrong), but my phone had the same under some lights, the stripes are constant and not moving. When I went outside, no issue whatshowever.
Same Problem...
If anyone has a solution please hit me up, this has just began occurring recently I'm currently wondering if it's because water has gotten into the lens of my Galaxy s9+ as earlier today I accidentally placed it onto a small water puddle. I'm keen to know why my damn phone has this problem after working perfectly well for a long ass time without any of these problems when I maneuver and mess around with the shutter speeds. Once again, if you know what's wrong please respond to this thread fast.

Just got 4.5.2 update and still jello screen scrolling

This update has done nothing, still stuttery wobbly scrolling, still out of focus auto focus camera issue, what exactly have they done ?
I have it also. Not been too impressed with the camera so far. Poor low light photos and also slow auto focus.
Also seem to have an issue with the ambient light sensor. Kept jumping around last night when sat trying to read stuff. Was low light in the room and when I first woke the device up was very bright and then within a few seconds would drop to very dim and difficult to see. When the device was then locked and unlocked again the process would repeat itself.

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