Thanks Louie and Hugh
Quote:
Originally Posted by gregbradley
Yeah that looks better. Stronger in that area. There's no question these GSO RCs are sharp.
Greg.
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Yes the optics look to be good with these scopes. It is the little finishing touches that need refining a little. Getting rid of that crap focusor would be a start, putting in a heated secondary would be good too.
Quote:
Originally Posted by Peter Ward
Things I really like:
- Perfectly round stars with no magenta halos (gotta love self-guide ahead of the NB filters
 )
- Beautifully smooth background with bugger-all noise.
- Good highlight and shadow control and not too much chroma.
What a great result! |
Yes I am really happy with the guiding of this scope with the integrated guide head. I still think there is room for improvement with the guiding but overall I am happy.
Being able to image at -30C all the time is great. The QSI is a great little camera but the -25C limitation in winter and -20C in summer does make it hard to control noise. I could easily push the cooling on the STXL to -35C and that would make for less noise again. The sensor and electronics also produce low noise levels as you know. It all helps to produce backgrounds with low noise. Although mostly I attribute lower noise to going long on my subs. I routinely do 30 minute subs and this gives me high ADU to work with, which impacts on noise.