I recently image NGC 6744 and comet Siding Springs at ISO 6400 and was surprised at the result.
I chose M17 and surroundings as the test.
Well I'm even more surprised, it's come up well.
This is 28 x 2 minute subs at 6400, I did 5 x 2 minute ISO 800 for the core of the nebula.
Surprising lack of noise.
I did use the cooler box as it was reasonably warm, which has effected the stars due to the weight of the cooler which has flexed the coma corrector.
I know it's this now as I've recently beefed up the focuser and there's no flex there.
Anyway I'll be using ISO 6400 more in future.
8" F/4 astrograph HEQ pro 5 mount. Orion mini guider.
Unmodded canon 1100D, baader type III coma corrector.
28 x 2 minute subs, ISO 6400 and . Stacked in DSS, processed in Photo shop Cs2..
As to using 6400 iso, when I was imaging with my Canon 350d and 1000d, I found that varying the iso from 400 to 1600 made very little difference to the final photo.
Another keeper Justin. Colour balance and everything else looks just about perfect
Thanks Steve!
ISO 6400 imaging is certainly going to extend the my target options.
Cheers
Steve
Quote:
Originally Posted by gregbradley
Wow, that's superb. Love the colours and the subtle misty reflection nebulas.
You've got a nice formula there.
Greg.
Thanks Greg!
Yep like this formula!
Can't wait to get amongst some challenging targets.
Quote:
Originally Posted by cometcatcher
That's really deep. Looking forward to more shots with those settings.
Thanks Kevin!
Quote:
Originally Posted by Paul Haese
Very nice work Justin. I really like the star colours. Detail is great and whole field is beautifully rendered. Well done.
Thanks Paul!
Glad you like it.
Quote:
Originally Posted by Ross G
A great looking photo Justin.
Nice detail and I love the colours.
Your processing is excellent!
As to using 6400 iso, when I was imaging with my Canon 350d and 1000d, I found that varying the iso from 400 to 1600 made very little difference to the final photo.
Ross.
Thanks Ross!
Yes I was surprised how little difference there is to lower ISO images.
I was always reluctant to use the bogey man of ISO's.
Not now it's my new best friend.
That's one of the best colour renditions of this object I've seen for a long time Justin. Lovely depth and nuance to the colour and very natural looking - nice job!
Really got a depth to it. LOVE the colours. WELL done.
Thanks Lewis!
Quote:
Originally Posted by Shiraz
that's really good Justin - whatever you are doing, keep it up.
Thanks Ray!
Always fun when a experiment works out.
Quote:
Originally Posted by marc4darkskies
That's one of the best colour renditions of this object I've seen for a long time Justin. Lovely depth and nuance to the colour and very natural looking - nice job!
Cheers, Marcus
Thanks Marcus!
I'm working more with the colours from the camera, it seems to be working well.
