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Old 09-10-2014, 11:59 AM
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AstroJason (Jason)
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Join Date: Oct 2012
Location: Blue Mountains
Posts: 656
Chameleon Dark Cloud Complex - From Wiruna

Hey all,

Here is another image I have been working on since my week away at Bretti and Wiruna. This one is a little off the beaten track, the Chameleon Dark Cloud Complex. I don't think this is imaged that often but I am starting to get an interest in imaging regions of dark clouds and reflection nebulae such as this.

I had a lot of challenges getting this image. First was framing the image. It was so dim, it was hard to tell if I was in the correct spot and had to rely on my alignment and the dim stars in the area to ensure I did in fact have the right location. Secondly, I had a lot of trouble getting long enough subs near the pole. Eventually I was able to push the subs to 5 minutes unguided and was pretty happy about that as this target really needs long subs.

So what you see here is my longest total exposure length to date being 4 hours. I thought it was risky using so much of 1 night on this target considering I was not sure I even had it in the frame but I really wanted to give it a try.

Usual camera set up... Canon 6D, 70-200mm f/4L IS lens at 200mm stopped down to f/5.6 and ISO3200.

I am not entirely happy with the image compared to my other work but figured I would post it anyway. I think it really needs more data to help bring out the dark clouds and maybe a little more focal length than just 200mm.

A much higher res version can be found here.

As always thanks for looking and feedback is greatly appreciated.

Cheers,

Jason
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