I am wondering if anyone knows how to access the Exposure Indicator Values programmatically? I'm looking at doing a time-lapse application that manually adjusts the exposure settings based on the Exposure Indicator Values to keep the exposure at 0.
Example, when the exposure indicator value shows -1, I would like to step it up 1 stop using a faster shutter speed to keep the Exposure Indicator Value at 0.
Thank you!
This is not supported in the camera settings. To achieve desired expose in photography, the balance of ISO, aperture and speed are what will give you the control.
Use the camera on manual mode or Program mode for the most control. You can then stop down, or up according to the desired exposure.
Related
HELP.
I am stuck with Samsung Galaxy Camera. In need of getting trough changing of the display, optimizing it and controlling camera with that changed surface. (make interactive sliders for all this options below. and make them work.)
ISO sensitivity, exposure value, aperture, shutter speed, image resolution, OIS function, display guide lines
How can I improve the detection of key features by optimizing camera settings?
What are the optimal camera settings for a variety of weather/ illumination conditions?
I have to use eclipse and openCV. Any ideas where to start? What to do?! Btw, I WOULD PAY for someones guidance.
Anyone?
:crying:
It seems some camera options are not very well documented. Thought I would start a thread to share tricks to help improve photos. There is another thread for tips and tricks but that one focuses on other things. Since camera is one of the highlights of this phone I figured a dedicated thread was worth it.
Here are a few I found. Feel free to share yours!
1. When tapping to focus on a point, if you do a long touch instead, it will set a focus point but add a second movable frame for exposure so you can have an exposure point that is not your focus point (IE focus on someone but expose for highlights)
2. If short tapping to focus, you can then tap/drag the focus point up or down to adjust exposure level (exposure compensation).
3. From my early tests, it looks like the camera hdr is better at recovering shadows instead of highlights. When having high contrast scene, change exposure so the highlights are better exposed when looking at picture frame. Shadow details will come out better (don't over exaggerate this or shadows will remain too dark). Adjusting exposure for shadows never seem to recover highlights properly.
4. I've seen some reviews where pixel 3 has a better exposure using their night scene function. If the mate night function yeilds results too dark, you can force the time and Iso to use (tap the icons in bottom left and right). So far I found that if I look at the picture info and see the auto mode exposed say 4 sec with Iso 400, usually keeping 4 sec but doubling Iso (800 in that case), will produce a better exposure similar to the pixel. I don't want to get into color/detail comparison between the 2 devices.. This is just to get a better exposure. Guessing they'll sort this out in a future update.
For now that's what I found that didn't feel intuitive.
Please share your findings!
Let me share my suggestions:
1. In case of pro mode ,shutter speed is restricted to 30s of exposure whereas night mode can give up to 52s (max I have seen) exposure.
2. You can try different light painting modes to achieve low-light shots as well. I tried with star trails and got good results ( but exposure gets throttled and(or) locked at some point.
3. in Pro mode, If you are taking low-light snaps in an enclosed area such that your flashlight can reach, then you will get very good photos for reasonably smaller exposure times.
4. Use tripods for all night shots (bluetooth trigger will make it even better), don't rely on stabilization unless there is ample light and that exposure time will be around 1/125 , because even night mode can be affected despite the claim that OIS stabilization will be sufficient.
5. lowering the exposure while taking close-up flash photography will help in partially retaining data that would have been lost due to flash overexposure.
Thanks,
Rakesh
There are black spots on the camera viewfinder when taking photos at night, and the highlighted part of the photo looks whitish. Does anyone know the possible reasons?
Your phone may automatically increase the camera's ISO to improve the brightness of a shot taken at night. This amplifies the digital noise and granularity of the photo.
When taking a photograph or video, remain in a well-lit environment for optimal effects, or turn on the automatic light compensation feature located in the upper left corner of the screen.To enable light compens ation when using the rear camera, set the flash to always on.
[email protected] said:
Your phone may automatically increase the camera's ISO to improve the brightness of a shot taken at night. This amplifies the digital noise and granularity of the photo.
When taking a photograph or video, remain in a well-lit environment for optimal effects, or turn on the automatic light compensation feature located in the upper left corner of the screen.To enable light compens ation when using the rear camera, set the flash to always on.
Click to expand...
Click to collapse
Thanks for your reply. I tried with this, it is reallly useful.
Hi everyone,
I just purchased a Nokia 7 plus and I can't find any way of setting a minimum shutter speed. If I go into pro mode and set shutter speed to 1/125 all my low light pics are great with no blur but obviously this will make bright daylight shots over exposed.
Is there a way to mod the software to keep everything the same but let me adjust the minumum shutter speed to 1/125? rather than fixed at 1/125
What would be perfect for me would be a setting at 1/125 minimum shutter speed and a slower speed for when using the flash to capture the background (Google - Dragging the shutter). but if not, i'd be happy if I could only have the minimum shutter speed.
I only use the camera for family pics and a lot of those are of my 2 year old boy. I don't really want to mess with settings too much because you have to be quick to capture those special moments.
Recently, I did root on Mi Max 2 and then enabled camera2api to have manual options to change iso, shutter speed and be able to save photos in dng (RAW) format. I noticed that in the default camera app I can take pictures with a manual shutter speed setting up to 32 seconds. But when I use other applications that allow manual settings and saving in dng, the maximum working shutter speed at which I can take a picture is 4 seconds. Choosing any higher shutter speed value means that capturing the image lasts indefinitely (regardless of the manual settings and the file format).
Can anyone explain to me why in the default camera app taking photos with shutter speed e.g. 5 seconds is possible and in other camera apps capture with the same shutter speed (and higher) never ends? Is there any way to take photos with a time longer than 4 seconds and be able to save them in dng format?