Sh2-82 and reducing stars

User images created with StarTools.

Sh2-82 and reducing stars

Postby 1074j » Wed Sep 03, 2014 12:36 am

As there have been a few posts on reducing star size, I'd though I'd chime in. I frequently use the 'shrink' and 'tighten' functions, which can work quite well. However, brighter bloated stars are problem so I either layer/blend in a L image made from a HaRGB sequence. I also sometimes use the green channel as L, especially for my Canon lens which has quite a bit of CA bloat in the blue channel (I make a synthetic L from RGB). The original L subs for this image were 400s exposures at f/5 with a C11 so the brighter stars had quite a bit of bloat.
Sh2-82v4small.jpg (293.73 KiB) Viewed 2122 times
Posts: 33
Joined: Mon Sep 23, 2013 11:36 pm

Re: Sh2-82 and reducing stars

Postby admin » Thu Sep 04, 2014 3:30 am

That looks really good - wonderful colors too!
Yes, start bloat is a tricky one if star cores are overexposed/non-recoverable. Seems like your method is working for you though! :thumbsup:
Ivo Jager
StarTools creator and astronomy enthusiast
User avatar
Site Admin
Posts: 2167
Joined: Thu Dec 02, 2010 10:51 pm
Location: Melbourne

Return to Gallery

Who is online

Users browsing this forum: No registered users and 6 guests