Nebulosity and taking darks

Arthur Alchin (Arthur Alchin) · #1 21-08-2009, 07:32 PM

I now have a combination of MacBook, Nebulosity and Meade DSI.

Can anybody tell me how to take "Darks" with Nebulosity, can't find it documented anywhere.

Thanking you

Arthur

multiweb (Marc) · #2 21-08-2009, 10:21 PM

Plug your scope and shoot.

White Rabbit · #3 22-08-2009, 12:58 AM

just cover the end of ur scope and take images of the same duration as ur light frames. take 1for every image u take then stack them.

Arthur Alchin (Arthur Alchin) · #4 22-08-2009, 03:42 AM

will nebulosity automatically subtact the bad pixels??

multiweb (Marc) · #5 22-08-2009, 10:55 AM

Quote:

Originally Posted by Arthur Alchin

will nebulosity automatically subtact the bad pixels??

You need to do a bit of reading about calibration frames. What dark subtraction, flat fielding and bias frames do to a raw sub. If you check Craig's blog on starklabs you'll find answers to all your questions.