Quote:
Originally Posted by RB
Goodonya Rob, wow for a 35 min shot you've captured nice colour and detail.
Now you need to start going longer to really increase the SNR.
Well done mate.
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Thanks Andrew. I've just about finished surveying the messier objects, sorting tracking and learning the basics over the last 12 months. I thought I might start playing with collecting some data on signal to noise ratios and sorting out optimal sub lengths for city and dark sky soon. Agreed you can't beat long exposures - your Veil shot is evidence of that!
Quote:
Originally Posted by AlexN
lookin great Rob! I agree with Andrew.. time to start doing 15~20 x 5~10 minute shots.. more exposure is always the key to better images... These days I'm aiming at a minimum of 2.5hrs a shot.. targets I really want to do well I'm aiming for between 7 and 15 hours exposure spread over a few nights..
You're going really well!
ps - Yep, dark skies makes life HEAPS easier when it comes to processing.. I found my shots from 10 chain hill required about 25 minutes processing to get them looking good, images from home with equal exposure time taken at least an hour.. This is where narrowband comes into its own!
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Yeah, I guess I've tended to be a bit "hit and run" with a lot of my imaging Alex. I haven't been in a hurry to go too long, because I constantly feel like I'm learning new tricks for data collection and processing. I suspect my HEQ5 could use some tweaking too before I go over 10 mins - interesting the comments you've made about yours and how well it behaves.
My other issue is 'wanting to have a go at everything" when you get out to a pristine site - I think I get paralysed for choice and end up trying to as many objects as possible! Agreed going longer is essential - I'm just not sure about the whole thing of the benefit relating to the square root of exposure time. Hmmm - maybe I'll need a big dob to keep me amused while the imaging rig is running.......
Will be watching with interest your forays into narrowband. Sounds like a cunning plan.