Author Topic: MLV App dark frame subtraction creates extreme noise  (Read 3005 times)

cannibalferox

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Re: MLV App dark frame subtraction creates extreme noise
« Reply #25 on: June 02, 2022, 02:40:45 PM »
Oh okay, yeah the dark frame was definetly recorded at a totally different day at totally different temperature. With the battery I am not sure because I let it run all the time from a dummy battery adapter and power directly from a powerbank.

To be honest I hoped I would record once the dark frames for various settings and have them "forever" in the folders for future darkframe substractions and to not record every single time a darkframe video for every single shot I take

Danne

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Re: MLV App dark frame subtraction creates extreme noise
« Reply #26 on: June 02, 2022, 03:45:49 PM »
Should work better even if the darkfram was recorded afterwards. Subtraction works best with 14bit and maybe ok with 12bit files. 10bit files not good imo.

Skinny

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Re: MLV App dark frame subtraction creates extreme noise
« Reply #27 on: June 02, 2022, 03:56:45 PM »
@cannibalferox you can try "pre-heating" your camera, let it run for a few minutes with high iso recording video.. then record mlv for dark frames. maybe it will be close enough..