Quote:
Originally Posted by DJ N
Hi Andrew,
Still coming to terms with exposures and everything else with this camera. From metro Adelaide, when I had the 400D, I could not go past 8 minutes with the Hutech IDAS filter. With the QHY8L, I am at 8 minutes with no pollution filter, and has been mentioned, could go a bit further (I am also checking ADU etc to try and determine optimal exposure).
In terms of software, I am using EZYCAP to control the camera. This software is supplied by QHY. At first I found it a bit non-intuitive to use, but that could have been more my "hesitation" rather than the software. After using it a few times, I don't find it not too bad indeed.
In terms of processing, I am using Deep Sky Stacker and Photoshop.
All in all, for the money I paid, I think it is a pretty good little unit. In fact probably a bit cheaper than a cooled/modded DSLR.
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Hi Daniel, I am really not suggesting you expose each frame for longer just capture a lot more frames. The longer you expose each frame the deeper you go into an image but the greater the chance of filling the wells for each pixel and then saturating areas of your image. Sometimes shorter subs will give a much better image with better star colour etc.
It is just a bit of a balancing act between each exposure duration and the number of exposures required to lift that magical SNR to great levels.
Remember once any star etc becomes over saturated no amount of software or processing will make it anything but white.
Good luck with it, you are going very well.