Quote:
Originally Posted by [1ponders]
Would the "white" colour of the LED really matter if taking flats through rgb filters? It may be naive on my part but if there is red, green and blue light emitted eventually, wouldn't the only difference be the length of exposure for each colour to get the correct histogram placement?
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This is quite valid remark. However the length of each exposure could be very different, possibly too much to be practical
Of course, for BW camera I think it does not matter because flat calibration done with one colour can be used for others, only difference would be a fixed correcting factor.
Also, if RGB LED's are used (for colour camera), I think it may be a good idea to have Red, Green and Blue grouped in such a way that the colour balance is adjustable.