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Old 17-10-2007, 03:32 PM
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rogerg (Roger)
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Join Date: Feb 2006
Location: Perth, Western Australia
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Thanks Mike

Quote:
Originally Posted by iceman View Post
But I'd also be happy with an M31 like that!!
You're right - it's so rare that we even see it, let alone get to photograph it, so I am happy that I managed to snag it - didn't even know it was going to be up until someone on the field yelled out an exclamation about it being up

Quote:
Originally Posted by iceman View Post
Did you take dark frames with any of these?
Yeap, all had dark frames. Not many dark frames though, only one for each exposure length - not as many as I should have done. So i had to 'fade' the dark frames a little to simulate early/late evening (warmer/cooler). A bit dodgy, but it worked

Quote:
Originally Posted by iceman View Post
What were you guiding with?
I was guiding through my Megrez 80 prime focus (480mm) using my QuickCam Pro 4000. The software used was GuideDog.

I have previously found it an absolute pain guiding through my guidescope in the 6 point ring systems, and framing the subject, so I took the easy option this time - guide through the megrez and point the camera easily on it's ball-join tripod head. No fuss, easy to find a guide star, much more enjoyable.

I'm considering mounting the 70x700 guidescope on a ball-joint tripod head as a result, after all, it's significantly lighter than my L lenses so shouldn't be a problem. Medium duty tripod head.

Quote:
Originally Posted by iceman View Post
10 minute exposures! Drool!
It's nice to be able to do the long exposures, that's for sure. Once it's working, it's working, and 10 minutes isn't a problem. 20 minutes allows a little too much margin for error - someone pointing their laser pointer at the FOV or something like that, so I stick to 10 mins out in the field. Of course the problem is usually getting it all going in the first place
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