LMC Wide Field 200mm, f4 - 26.11.08

[strongmanmike (Michael)]

Originally Posted by dugnsuz

Thankyou Martin.
I may have to frame this thread as I'm getting so many kind comments from imagers whose work I admire
Oh my swollen ego!!!
Cheers all.
Doug

All well deserved Doug, a quite dramatic and rewarding view!

Mike

[dugnsuz (Doug)]

Originally Posted by strongmanmike

All well deserved Doug, a quite dramatic and rewarding view!

Mike

Cheers Mike
Doug

[2020BC (Bill Christie)]

Thanks, Doug. I found that Barnards Loop was a big ask for my unmodded camera. The Loop appeared to be mostly faint H-alpha. I had a crack at it (at f4 and 14x4mins 800 ISO) and I wasn't pleased with the result. The loop was only just visible.

I'm very sure that with your modded 40D camera (x4 more sensitive to H-alpha) you would do a whole heap better than I did if you had a go at f4 for 60 mins or more exposure. I wouldn't go any faster (eg f2.8) with that lens because the stars will exhibit significant "coma". I'd recommend shooting this one in the early morning - the nights being warm.

Originally Posted by dugnsuz

Cheers Bill - I'm going to try out my recently acquired 50mm f1.8 MkI lens soon, as you're the expert with that particular lens, what f stop do you recommend? I want to try and get Barnards loop in/around Orion.
Cheers
Doug

[dugnsuz (Doug)]

Originally Posted by 2020BC

Thanks, Doug. I found that Barnards Loop was a big ask for my unmodded camera. The Loop appeared to be mostly faint H-alpha. I had a crack at it (at f4 and 14x4mins 800 ISO) and I wasn't pleased with the result. The loop was only just visible.

I'm very sure that with your modded 40D camera (x4 more sensitive to H-alpha) you would do a whole heap better than I did if you had a go at f4 for 60 mins or more exposure. I wouldn't go any faster (eg f2.8) with that lens because the stars will exhibit significant "coma". I'd recommend shooting this one in the early morning - the nights being warm.

Thanks Bill - had a quick go at 70mm a week or so ago, just managed to fire off a few 5min frames. But that was enough to pickup the loop, so I'm hopeful.
Cheers
Doug