Quote:
Originally Posted by alpal
Hi David,
Wow - 520 sub frames!
I have a feeling that there is better data in there than you think.
Make some flats up + at least 100 dark frames at the same temperature
& same ISO. ( that's 2 different ISO's- but DSS will handle it )
You might need to put the DSLR camera in the fridge to get similar temperatures.
cheers
Allan
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Hi Allan
I normally do 30 dark frame for each session so I probably have about 150 or so... or you mean each session 100 darks?
I agree with you about may have better data. I just feel I need to learn more about how to use PS to bring the detail up. I've tried different ways from online tutorial and now I guess I got a bit skill about it although may not be the best.
Btw I would like to also know in the pic you know the centre is much brighter than the edge and the changes are not smoothly... I mean if I zoom the actual pic (not the one I uploaded) I can see "square" in different color ... how can I make the brightness transit smoothly? Or it just DSLR problem?