[gregbradley]

Originally Posted by atalas

Nice shot Greg....whats all these 8300 shots?you tied of your big chip camera? would of thought the small pixels of the 8300 would be good match for the FSQ.

Thanks Louie. The 8300 chip would be good on the FSQ. I'll have to give it a go.

I'm in 2 minds about the 8300 chip. Its got good sensitivity, I like the image scale it gives but the small wells give you bloated bright stars.
So 5 minute exposures for LRGB and 15 minutes for narrowband seems to be the formula. I've got my eye on the new KAI29050 chip but it has even worse well depth at only 20,000 electrons. The 8300 is 25,500.
I have been using 10 minutes and only recently decided its a mistake and 5 minutes would be better. Noise is so low that multiple short exposures is fine.

Originally Posted by Octane

Greg,

That's some serious image scale. Looks like a brilliant scope.

I have to say, I think you've been a bit heavy-handed with your processing. To my eyes, at least, there is just way too much contrast. So much so, that your background appears to be clipping into the black. It probably isn't, but, it just appears that way (using a calibrated screen, here).

I think you can still retain the punchiness in this image, but, still keep it light and fluffy, by reducing the amount of contrast which is forcing the background into black.

Light and fluffy trifids are delicious.

H

Point taken. Its now repro'd. It went off the rails somewhere in the earlier processing. Now light and fluffy and a bit wider field. I like the way it picked up some nice reds in the background. The background looks nice whereas usually the background with the Trifid is usually yuck.

Originally Posted by irwjager

Lots of life in that one Greg! I actually quite like the way you processed that. It's bright, sure, but detail doesn't suffer and you get a real sense these objects glow (it's all too easy to kill that when processing). Nice!

Thanks Ivo but with the fresh eyes of the group I can see I missed the boat with this one and I repro'ed it.

Originally Posted by DavidTrap

I'm going to vote with the overexposed camp here - it's just too in your face for my liking Greg.

I'd really like to see if the details comes through in a toned down version.

DT

Repro done. I agree after seeing the posts I'd lost control of the processing at some point.

Its pretty amazing though to overexpose a dim nebula with only 1 hour of luminance and 10 minutes each of RGB! I guess that's the power of 180mm of fluorite, F5.2 and 60% QE of the FLI 8300 at -45C brrrr.

Greg.