Quote:
Originally Posted by Tulloch
You will certainly have issues keeping the planets on target with a manual Dob and effective focal length of 4500mm - my advice would be to invest in a Goto mount  . Achieving accurate focus will be extremely difficult!
Not too sure what you plan to achieve by combining an image without the L filter, note the focus point in the high IR will be significantly different to the visible part and will probably adversely affect the result. I've never seen anyone do this before...
If you haven't seen these before, I'd recommend watching these tutorial videos, they cover everything from the equipment to the software.
http://planetaryimagingtutorials.com/ |
Don't quite have the cash on hand needed for a GOTO sadly, plus no one has stock anyway!
For focus, we have a Bahtinov mask, so hopefully, that'll do.
As for grabbing data without the UVIR filter for an L layer, no idea! Worst case scenario I just have my regular stacked colour data anyway
That tutorial has some good stuff on gain etc but I'm not sure why he uses RegiStax over AS!3 - will flick through it sometime
Here are my pix taken with a 6" dob and 2x barlow (3x for mars).