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Old 25-09-2008, 07:31 PM
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multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,079
Quote:
Originally Posted by AlexN View Post
Geez... The full res one looks VERY smooth.

Not only smooth, but you definitely centered it in the FOV! did your mount do that or did it take some tweaking??
No tweaking. I just pointed and shot. Got lucky.

Quote:
Originally Posted by AlexN View Post
A very nice image indeed.. I'm hoping to capture some data on M16 this weekend from dark skies...

A question, your gain and offset settings, How come so low? I was under the impression that gain and offset settings were generally to be set around 50 and 110~125 respectively??? I know you can set them where ever you like, but I had thought that for general use, those settings would almost always be ok....

I understand that Gain being 0 is a lot less likely to generate noise, however, does it not also force you to run longer subs to pull similar detail?

Alex.
Hi Alex, Gain & offset are still a bit of a mystery hey?
I never use any gain. I just leave it to zero now. There's no point bumping it up. But reducing the offset allows me to control the background sky glow. I target 800-1000ADU. So that will depend where you're imaging from. My backyard: offset 50. I used to have it at 110 but even under dark skies my background ADU would still be around the 6000ADU mark. I only tried 50 last night. Was a first and I got better results. I'll try again this week-end from Wiruna see how it goes.

Last edited by multiweb; 25-09-2008 at 08:31 PM.
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