Quote:
Originally Posted by Bassnut
I disagree with Alex on this one, id try 1600ASA at shorter exposures (and more of them) and some 1 min and less for the core to stop blow outs (OK, for the core, lower ISOs perhaps). If your having trouble with darks, use ICNR. 20 min exposures with an EQ6 and DSLR just wont work.
Anyway, I think this image is pretty good, the noise doesnt look that bad.
|
1600ASA, ISO?
The darks even though not all at same exp. lengths as lights reduced the noise in DSS better than without. Its a great learning experience seeing the results when stacking, then processing.
I used a touch of gaussian blur to try eliminate some noise in the processing.
Quote:
Originally Posted by AlexN
You need to expose your flats for a very specific amount of time. Just enough to get the histogram peaking between 1/3 and 1/2 of the way across. They should only need a maximum of 1sec exposure using an LCD to do them... I'll do a test with my 350D tonight and see how long it takes to expose right on my (rather dim) laptop LCD, and on my bright as hell desktop monitor.
|
I thought flats should be the same length as darks and lights? Or is this applies in different scenarios? The latop birghtness on my laptop wasnt bright enough.
I read that you take takes flats and darks at other times, when the weather isnt too good for instance, and then create master flats and darks and use these for most processing, so that you can just focus on lights during imaging sessions and not the rest. Would definitely save time, as I learnt the hard way last night.
Thanks for the feedback guys
