Does anybody know of any camera app or method that would allow setting a maximum ISO let's say 1600, so that the ISO is still dynamic (50-1600) based on the scene but never go over 1600 or whatever set value? This way in both video and photo it would never get to 3200 or whatever the max is and become too noisy. I've looked into a lot of 3rd party apps including FilmicPro and none seem to offer such functionality.
Related
I have written my own video recording/streaming application and needless to say I believe there are many undocumented calls being made by native camera application in order to get around resolution restrictions, etc.
Default android sdk doesn't allow for anything other than QVGA to my knowledge...yet native camera app has no issues with mpeg4/720p, etc.
I have looked at htc kernel source code but I don't believe evo custom source like camera is in here...am I mistaken?
I would really like to see the special magic done by native camera app.
Thanks in advance...mike.
Hey,
Excited to hear you're diving into this. I wanted to add my 2 cents as to potential improvements: give us the ability to turn OFF the auto shutter / exposure settings on the video camera.
The video camera drops shutter speed and increases exposure in lower light situations - resulting in blurry and pretty much unusable video in dark situations. 8 FPS? ew.
I will be first in line to buy a video camera app that gives me full manual controls (or at least gives me steady FPS in light / dark situations, and manually adjust exposure (like iso).
Thank you, and GOOD LUCK!!
Dillon
Found it in git...never mind.
some days ago, I see a very useful lightmeter installed on a iphone 4.
The program was using the camera for metering the correct exposure. it allows to change iso, f-stop and shutter speed.
is there anything similar in the android world?
it MUST be possible
I was thinking about this today, and I know the basic method for how a light meter app should function.
When you take a photo with the phone's camera, the file's properties contain the aperture, shutter speed, and ISO setting. From those values it is quite easy to calculate the EV value. And once you have the EV value you can have a calculator for all the possible ISO, aperture, and shutter speed settings.
Unlike light-sensor based apps, this would be much more accurate, because we know that the camera is capable of taking correctly-metered photos. The camera (at least on my Galaxy S) meters the specific point that you touch. I have tested the accuracy of the recorded image properties manually, by taking the three data values and putting them into this calculator:
giangrandi.ch/optics/lenses/expcalc.html
The app I'm describing apparently already exists for the iphone. All we need is for someone to develop the Android version. Unfortunately it is a bit beyond my abilities.
I don't know if its possible for an app to retrieve info from the camera as it is metering, but even if its not, the app could just let you take a picture and then immediately tell you the EV and all possible shutter/aperture/ISO combinations.
Anyone want to build it?
There is already an app for "proffesional" (as far as u can make professional photos with a mobile phone). But don't remember what was the name
Try if CamCalc fits you =)
CamCalc is just a calculator, it doesn't take any light readings...
OK, I've been playing around with the camera in manual mode. And I've been having a problem. We all know how good the long exposure works while using the 30 second exposure shutter. But my problem is using the 1/6000 it seems you need an INSANE!!!!!! amount of light. Today is completely sunny outside so I took the pictures below. One with the shutter at 1/6000 with iso set at 50 and then the other at 1/6000 with the iso at 800 to be able to achieve what it "SHOULD LOOK LIKE BRIGHTNESS WISE" and as you might guess having the ISO set that high causes a lot of noise in the picture. I'd just like to take pictures of my kids as they're running around the yard without them looking like a garbled blur. But I lose all light if I put it on 1/6000 and I lose a lot of detail if I put the ISO up high enough. It also doesn't help that the exposure for some reason automatically locks when I change the shutter or iso. It's been years since I've used a DSLR "the original digital canon regel eos the first entry level DSLR" but I don't remember having these problems. Any ideas guys?
What is the maximum exposure available in the manual mode? Can anyone check on this in the apps like Manual Camera or ProShot?
Folks;
being on an M51 using stock ROM, OpenCamera and stock Samsung camera, I am a bit lost figuring out how to use the cameras well. Two pecularities come to attention:
Samsung camera apparently has a way to set a 16:9 12MP image mode (4624x2604) whereas in OpenCamera the maximum 16:9 resolution is 3840x2160 (8.2 MP).
In OpenCamera, the 8.2 MP images (set to maximum JPG quality) have a size of apprx 2MB each, which seems reasonable. However, using Samsung stock camera set to 4624x2604, image files are close to 7.5MB which seems extremely huge for a JPG compressed image file even at best quality.
Does anyone have insights or ideas what the Samsung app does here what OpenCamera isn't capable of doing?
Thanks in advance and all the best,
Kristian
Samsung camera probably uses full resolution images and crops the view, maybe to align images? Open camera uses 90% jpeg quality by default, which has minimal impact in image quality but still produce more artifacts. You can set it to 100% in photo settings.
Makes sense, thanks. I'll play around a bit with the cameras and different resolutions and compare results. Mostly I'm a bit confused, too, because my previous device used to have bigger (file size) images while shooting with the same resolution, and I wonder whether "more bits" means "better quality" at this point (or just "more noise"). Already did set OpenCamera to 100%, just to be sure. Unfortunately, a bunch of modes (like the 64MP mode or that 16:9 12MP mode) aren't even available in OpenCamera. The tool still needs getting used to.