View Full Version here: : M42 - first image for a long time

02-01-2012, 10:52 PM
Hi all,

Finally got the new laptop going and got the energy up to try some imaging again. Was a hot night - 30 degrees - so set the Canon 450D to ISO 800 in a hope of reducing some of the noise. Still very noisy and the city location is fairly light polluted - no chance of getting some of that nice dust. Didn't bother with taming the core with a shorter exposure.

Looking at getting a cooled camera but what?

10X5 mins
Tak Sky 90 with reducer at 4.5
Astronomik CLS filter



Paul Haese
03-01-2012, 01:34 AM
Good effort Craig. As for a CCD, it all depends on how much money you want to spend.

03-01-2012, 09:23 AM
Very nice Craig - great job dealing with the noise. 30 is not the best temperature for an astro image to taken at.
If you went for a mono CCD you could do decent NB stuff from your location.

03-01-2012, 04:29 PM
Thanks for the comments Paul.

I was thinking of the 8300 colour version (an Atik or QHY) or a QHY 10, something not too expensive, but I realise this isn't going to help with light pollution. I was going to buy your cooled 40D but got beaten at the post.


03-01-2012, 04:31 PM
Thanks Doug, you are probably right but NB scares me a little with the processing. Maybe you'll move up to a mono CD and sell your Astro 40D:lol:

Paul Haese
03-01-2012, 05:30 PM
The QHY8 can produce very good images and has good cooling too.

03-01-2012, 09:36 PM
Thanks Paul. Yes, the QHY8 could do the trick. You think it might be better than the 8300C?

05-01-2012, 01:12 PM
Come up very nicely Craig. A bit hard imaging at 30 degrees without serious active cooling.

Nice job.

06-01-2012, 07:41 PM
Thanks Doug,
Just investigating the cooled QHY8, 9 and 10 at the moment but might end up with an "empty bank account". Will try and tame the core with some short exposures. Your M42 looked pretty good - nice dust.

06-01-2012, 08:27 PM
Very nice, Craig. I'm looking for a cooled CCD myself (mono), but will be interested to hear what which one you decide to get.

06-01-2012, 10:26 PM
Thanks Dave. Long road ahead.

Ross G
09-01-2012, 10:32 PM
A great M42 photo Craig.

You have captured lots of detail and I really like the colours.


10-01-2012, 12:24 AM
Thanks Ross. A little noisy and core blown out but will have another go when it's cooler.

11-01-2012, 09:56 AM
Nice shot Craig....If you want to stick with OSC I second the QHY8 for value.

13-01-2012, 06:06 PM
Thanks Louie. Looking into it at the moment. Need to tackle some of your tutorials before I post another. Craig