When the shutter button is pressed the app waits a few seconds and then records up to 64 frames with the selected settings. The app saves DNG raw files which can then be downloaded for processing on a PC.
On each occasion he shot an additional burst of black frames after covering the camera lens with opaque adhesive tape. Back at the office the frames were combined in Photoshop. Individual images were, as you would expect, very noisy, but computing the mean of all 32 frames cleaned up most of the grain, and subtracting the mean of the 32 black frames removed faint grid-like patterns caused by local variations in the sensor's black level.
The camera cannot handle exposure times longer than two seconds. If this restriction was removed we could expose individual frames for eight to ten seconds, and the stars still would not show noticeable motion blur. With longer exposures we could lower the ISO setting, which would significantly reduce noise in the individual frames, and we would get a correspondingly cleaner and more detailed final picture.
Disable Canon Dark Frame From your experience what is ~ long exposure to use it?
Also will there be any new additions to this project?
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