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Old 15-06-2014, 01:13 PM
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Shiraz (Ray)
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Join Date: Apr 2010
Location: ardrossan south australia
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Quote:
Originally Posted by gregbradley View Post
I sometimes find flats that are too bright are harsh and damage the lights I don't understand what this means Greg - what sort of damage do you see?

regards ray


I'd have to look over past callibrations. Mostly with the CDK which has been the touchy one to flat out in the past. The APOs are a piece of cake and very forgiving. I don't have exact and precise steps I took at the time so forget the comment as I may not be able to replicate it but I would still say though that too bright a flat could be damaging. After all you are dividing the values into the light to even them out so too high a number from the flat could divide too savagely?? I could be wrong here.

Greg.
OK. I guess you might run into problems if you have to correct significant vignetting and the flats are near the non-linear region - guess that would depend on the software.
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