I'm relatively new in this entire photography thing, and i really nejoy making timelapses. Until recently i had crappy $80 350d, after connecting it to my raspberry pi (overkill, i know) it was taking some pleasant timelapse frames.
Now i purchased used 50d and used ML menus to take my new timelapse; as you can see on this webm, colours are changing. I'm shooting those photos in raw, camera was set to manual, every setting i can think of was set to not change (white balance, aperture, shutter), i turned off every noise reduction i could find in menus - and yet colors are still flickering, from blue to red-ish.
I think I'll try to shoot in raw+jpeg next time, maybe jpegs will be somehow processed, but for now:
Please help. Any suggestions what might cause this color flickering?
>>2726331
i guess i'll bump with non-flickery timelapse.
>>2726771
I like this one, just wish it were longer.
>>2726791
Thanks!
I'll just throw more of those things, please mind that i still hope for an answer. Everything is short because 350d battery wasn't exactly a beast.
This one have kinda dramatic ending, i think i like this mood-contrast.
I assume you are shooting long exposures. You may need to do dark frame subtraction. When you shoot long exposure times the image sensor begins to warm up and that can cause a color shift or noise. This is fixed by taking a second picture using the same settings as the first picture, but with the shutter closed or lens cap on. The second picture only captures the image sensor noise and can be subtracted from the first picture. I've tried it using CHDK on my Canon A590. It works, plus CHDK will do the subtraction automatically. The downside is that it doubles the time it takes to record each frame.
>>2726863
This has nothing to do with what's going on.
Op, you don't have auto-iso on do you?
Beyond that, is there a road/some kind of building in that direction? It looks to me more like there's some kind of intermittent light and not a problem with the camera. This could even be caused by fog. How many different times did you get that result? Also, post individual frames (darker and brighter). Hard to tell shit in a video.
>>2726867
No, i don't have auto-iso. Everything was set on manual, every frame have same settings in exif.
It's not light, i'm pretty much sure of it. Half of my sky is very clear because there are just small villages in this direction, and this flickering timelapse was taken in this clear direction. I'm always getting this kind of more and less red frames in long exposures with this camera, no matter where i'll point it.
>>2726863
Thanks, i'll check it out - good thing ML have temp sensors in menus, i'll watch them while trying to take next timelapse.
Example of different frames, 1/2.
[EXIF data available. Click here to show/hide.]
Camera-Specific Properties: Equipment Make Canon Camera Model Canon EOS 50D Camera Software darktable 1.6.9 Lens Size 18.00 - 55.00 mm Firmware Version Firmware Version 1.0.9 Serial Number -203425520 Lens Name EF-S18-55mm f/3.5-5.6 Image-Specific Properties: Image Orientation Top, Left-Hand Image Created 2015:12:21 13:01:21 Exposure Time 30 sec F-Number f/3.5 Exposure Program Manual ISO Speed Rating 2000 Lens Aperture f/3.5 Exposure Bias 0 EV Flash No Flash, Compulsory Focal Length 18.00 mm Color Space Information Uncalibrated Image Width 1625 Image Height 1080 Rendering Normal Exposure Mode Manual Scene Capture Type Standard Exposure Mode Manual Focus Type Auto Metering Mode Evaluative Sharpness Unknown Saturation Normal Contrast Normal Shooting Mode Manual Image Size Unknown Focus Mode Manual Drive Mode Unknown Flash Mode Off Compression Setting Unknown Macro Mode Normal White Balance Tungsten Exposure Compensation 3 Sensor ISO Speed 300 Color Matrix 129
>>2726875
And 2/2.
[EXIF data available. Click here to show/hide.]
Camera-Specific Properties: Equipment Make Canon Camera Model Canon EOS 50D Camera Software darktable 1.6.9 Lens Size 18.00 - 55.00 mm Firmware Version Firmware Version 1.0.9 Serial Number -203425520 Lens Name EF-S18-55mm f/3.5-5.6 Image-Specific Properties: Image Orientation Top, Left-Hand Image Created 2015:12:21 13:01:22 Exposure Time 30 sec F-Number f/3.5 Exposure Program Manual ISO Speed Rating 2000 Lens Aperture f/3.5 Exposure Bias 0 EV Flash No Flash, Compulsory Focal Length 18.00 mm Color Space Information Uncalibrated Image Width 1625 Image Height 1080 Rendering Normal Exposure Mode Manual Scene Capture Type Standard Exposure Mode Manual Focus Type Auto Metering Mode Evaluative Sharpness Unknown Saturation Normal Contrast Normal Shooting Mode Manual Image Size Unknown Focus Mode Manual Drive Mode Unknown Flash Mode Off Compression Setting Unknown Macro Mode Normal White Balance Tungsten Exposure Compensation 3 Sensor ISO Speed 300 Color Matrix 129
>>2726875
Dark frames are for noise correction. It's not a uniform change across the frame or across shots.
>>2726331
Looks like auto white balance fucked it up. Remember next time to set it to one whitebalance setting, custom or preset for the entire timelapse.
>>2726875
Did you cover the viewfinder? Even with mirror up it is not completely lightsealed without covering the viewfinder.
>>2726887
It's manually set on certain setting (tungsten, i believe). Besides, as far as i know WB in raw is different chunk of data anyway - and i tried to apply my own WB in postprocessing, nothing changed, i doubt it's WB.
>>2726890
this one may be yet another good idea, thanks. ML is retarded and flashes red led+blue led from behind when taking timelapses.
