Search found 34 matches

by mhamburg
Mon Jan 05, 2015 1:34 am
Forum: Image Processing Troubleshooting
Topic: Star Halos
Replies: 4
Views: 2593

Re: Star Halos

Thanks for the reply, Ivo. The halos seemed to have disappeared when I saved the original .tif to a .jpg format. (Or maybe I have been looking at these images for too long? :confusion-seeingstars:)
by mhamburg
Sun Jan 04, 2015 4:58 pm
Forum: Image Processing Troubleshooting
Topic: Overexposure?
Replies: 10
Views: 5387

Overexposure?

This image has been modified in StarTools.
This image has been modified in StarTools.
sized_M1_inprocess.jpg (126.07 KiB) Viewed 4447 times
This is a 13X300s@1600iso shot of M1 (80mm APO Orion refractor) that I am trying to process. Obviously the nebula is overexposed and there is an overall reddish cast to the stars and background (the camera is a modded Canon 40D.). If possible, how do I correct? Thanks.
Michael
by mhamburg
Sun Jan 04, 2015 4:38 pm
Forum: Image Processing Troubleshooting
Topic: Star Halos
Replies: 4
Views: 2593

Re: Star Halos

sized_Autosave.jpg Hi Ivo, Look especially at the fainter stars. Could this be an artifact from some type of masking during processing that I somehow didn't do correctly? Michael ps. When I look at a crop of the star field, now I only see that there is a focus problem. I no longer see the halos!!! ...
by mhamburg
Sat Jan 03, 2015 5:59 pm
Forum: Image Processing Troubleshooting
Topic: Star Halos
Replies: 4
Views: 2593

Star Halos

Forgive me if this has been addressed before. What is the cause and the fix for the small halos around stars (especially around the fainter ones)?
Michael :think: