Log in

View Full Version here: : Milky way reprocess shots


Irish stargazer
16-03-2015, 07:37 PM
I have spent a good bit of time touching up some of my old images using a new PC and monitor and some newly acquired Photoshop skills. The poor Irish weather has limited my photo taking.

This is a 60s second exposure at ISO 1600 taken with a Sigma 50mm F1.4 on a 7D. Taken from Wiruna.

https://www.flickr.com/photos/7703127@N07/15495324354/

This image was used in the BBC Sky at Night program in January this year about the Gaia spacecraft.

Joshua Bunn
17-03-2015, 03:11 AM
magnificent John, this is a very striking focal length for these kind of shots. What f stop was the lens at, is it the Art series of sigma lenses?

Irish stargazer
17-03-2015, 03:13 AM
Hi Joshua

Its a standard F1.4 used fully open.

Joshua Bunn
17-03-2015, 03:14 AM
Is it cropped?

Irish stargazer
17-03-2015, 03:32 AM
No, its the full frame

mbaddah
17-03-2015, 08:38 AM
That's a fantastic image especially for only 60 second exposure! You must have had some really dark skies. I took a similar picture from Mag ~5 skies and I needed 25 minutes exposure using a 5d Mark II which you can see here https://www.flickr.com/photos/mohammedalibaddah/14638493324/in/set-72157639882085384 . Well done.

Joshua Bunn
17-03-2015, 10:33 AM
That's some pretty impressive chromatic aberration control by that lens.

Camelopardalis
17-03-2015, 01:19 PM
Wow, 1x 60s...nice one John :thumbsup:

Irish stargazer
19-03-2015, 05:50 PM
Thanks everyone :)