Hi all, Got a Desire HD and a radio control helicopter (Trex 500).
Would like to be able to look at the heli in flight with the camera (in video mode is ok) and see what speed the rotors are spinning at.
All that's required is a method of adjusting the camera shutter speed while pointing at the heli until the blades look stationary. (Maybe use the volume rocker for adjustment)
Also a little routine to put the revolution figures on screen.
The heli blades should spin at about 2700rpm but for a wider variety of helis, would like to read a range from about 1900 to 3200 rpm.
A shutter harmonic frequency could be used as I dont think the shutter can operate at these speeds.
There are units available that use this method... But the mobile phone with camera already has the hardware needed. Just need a little bit of programming, I'm guessing.
If anyone can help i'm sure there would be a lot of interest from various fields....
Feedback on the idea welcome.....
aero star
PS. Thinking of existing measuring apps available, any reason why shutter speed can't be added to give object speed calculation and result etc etc
PPS. Recording the heli in flight and then applying the Tachometer software would be ok.... might be easier to adjust the shutter speed for the video recording or playback... ???
How about a thread on possible SW enhancements through future FW updates? IDK if it matters, but we could try.
Here's my list, but please add whatever SW issues/bugs you've run into.
1. They should put 'microphone noise suppression' back to call settings. My HK Z3+ doesn't have it, but my Taiwanese Z2 does. I'm using those in the US, but I can ask for it on behalf of HK folks anyway
2. Occasional high 'mobile radio active' numbers on 4G (LTE) mostly from Google apps . My fix was to 'close all apps' once in a while. It's a known lollipop issue (Thanks @addicted1900)
3. Current 8mp auto mode is great for low-light shots. I'd say it's probably the best one in Androidland. Day shots could use a 16mp auto mode, but that will probably ruin current 8mp mode's low noise advantage with excessive noise. So it'd be great if they could adjust the resolution on the fly with some extra settings (like dynamic resolution, always 16mp/20mp, always 8mp,etc). Or at least include a separate high res auto mode (it'd be confusing - I know)
4. Auto mode could use a little lower EV while shooting at bright objects.
5. I used 'trepn' to profile core usage (& assuming trepn itself is not a CPU hog)
Home screen: All 4 little (a53) cores running at max 1.56 GHz most of the times with occasional bursts from 1/2 big (a57) cores. Sounds like an overkill
Settings page: Ditto
Camera (superior auto for photo only): Ditto
Fun fact: Only little cores run the 4K show. Something could be done there too
Point is there is room for improvement & going by Sony's fw update history (their fw updates are quite solid, btw), we could ask for the same thing here
Adaptive light puts screen backlight too low in dark environments.
I wish it could get dimmer at night in fully dark rooms
When Stamina mode is on ( with extended usage enabled), The decreasing of framerate is noticeably. (Never happened to my Z1)
ing005 said:
When Stamina mode is on ( with extended usage enabled), The decreasing of framerate is noticeably. (Never happened to my Z1)
Click to expand...
Click to collapse
Well, you know that's the way "extended usage" is meant to work?
Yeah but as I said , it doesn't happen to my Z1 , which is 3 generations older.
Profile mode for high, medium and low performance.
Given the performance of sd810, I don mind a under clocked sd 810 for better performance. Just like how one plus is doing
When recording video I'd like the option to defeat noise cancellation/DSP and record 'flat'. Or tweak it somehow. Right now my Z2 records generally better audio on video than my Z3+ .... the Z3+ doesn't seem to record with much gain either, when it's supposed to be autogain - can't believe it needs that much headroom.
Plug in the STM10 (or a Smartlav+ ) and thankfully audio is very much improved - but I don't always have those with me.
I'm sure the speakers can go louder for ringtones, again seems quieter than my Z2 by maybe 3dB or 6dB perhaps (haven't measured, but human ear generally sensitive to 3dB differences).
Really pleased on the Z3+ things like Lifelog and Social are uninstallable, even PlayStation and PSN apps come off without root (could not be removed from Z2). I really like the direction of optional bloatware.
I don't know how broad Sony's Backup vault is, but I'd like to be able to backup/restore custom ringtones and SMS/hangout notifications for my contacts. This is one area where iPhone excels - restore to a new iPhone and pretty much everything remains identical. I don't want to have to futz with NFC locally when it could all already be stored in the cloud.
Overall, I am very satisfied with the Z3+ ... but I warn Sony, if they start going all proprietary again (eg all that ATRAC nonsense, can't even play a video from a standard USB stick on my Dad's Bravia TV, etc) -- then I will leave as quickly as I arrived
Another one for my wish list - a quick way to add Reminders by voice input - perhaps add the option to the long-press power button menu. (I know I think there is an option to always have Google Now listening if the screen is on, but I don't want that)
Not sure of the security implications though, I notice on my Z2 and Z3+ for example if I want to change Camera Mode out of Superior Auto after quick-launching it from sleep with the hardware button then I need to unlock with my password.
What's the difference between leaving the camera and camcorder in auto mode, and switching to manual mode without changing any of the settings? Reason I ask, is because i was wondering if i were to record video in manual mode with the bitrate set to "high", and hifi audio turned on, but without messing with any of the on-screen settings, if it would basically be like recording in auto mode with a higher bitrate and audio quality.
When in manual, your settings will stay where they're at whereas auto will adjust. So things like shutter speed and ISO will stay where they're at and not readjust. You will have to make sure you are vigilant about checking your exposures each time you open the camera to shoot.
I was wondering if there were any ROMs or mods that support turning denoise off. (for some reason, Snap Camera doesn't have this option in G4 Plus)
Since manual controls are already present, noise reduction causes loss in image quality in low light with slow shutter speed.
Thanks.
Is it possible to use slow shutter on this phone somehow?