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Old 08-08-2013, 02:52 PM
mg (Mitchell)
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mg is offline
 
Join Date: Jul 2013
Location: Gold Coast
Posts: 84
Few widefields with DSLR

Hi everyone.

I took a few pics down at Salt beach last weekend, and composed them.

All taken with Canon 600D.

The southern cross is with 50mm f1.8 lens at f2.2. ISO 1600, 6 sec subs.
I used about 15 or 20 subs in 2 overlapping fields. 10 darks/10 bias.
Stacked with DSS, merged and tweaked in photoshop.
The lens shows some distortion in the outer edges of the field at f2.2, so next time I think I'll use more overlapping fields and use the central parts only.

The milky way image is with a tamron 18-270 lens at 18mm f3.5. About 15 x 15 sec subs and two overlapping fields again. More distortion than the 50mm prime, so a few oval stars at the edges. 10 darks/10 bias.

The moon is with my 102mm doublet and 600D last full moon. No mount yet, just on the couch manually aimed to the moon.

Overall I'm happy with the results I can get from pretty standard gear and just a tripod. I only used a couple of minutes of exposure time for each pic and about 30 mins processing. I've got a tracking mount coming so will hopefully improve out of sight soon.

Would love tips on improving the post processing if you have any.
Cheers.
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