Here's another image by moonlight, this time of Eta Carina.
There's quite a lot of coma as I wasn't using my coma corrector, this image is only two subs of 5 minutes each, ISO 200 and 400. They were stacked in DSS and processed in photshop.
No dark frames, flats or bias frames were used, I'm amazed how clean the image is. The only real problem with processing i had was the minimum pass filter in photoshop, it's very aggressive and can only set to 1 pixel. This leaves black rings around the stars, which I don't know how to get rid of yet.
Telescope 8" f/4 astrograph.
HEQ Pro5 mount.
Canon 1100D.
I'm also at the "beginner" stage with Photoshop. I have found that if you create a duplicate layer, use the minimum filter and then reduce the opacity, helps reduce the black rings.
Here's another image by moonlight, this time of Eta Carina.
There's quite a lot of coma as I wasn't using my coma corrector, this image is only two subs of 5 minutes each, ISO 200 and 400. They were stacked in DSS and processed in photshop.
No dark frames, flats or bias frames were used, I'm amazed how clean the image is. The only real problem with processing i had was the minimum pass filter in photoshop, it's very aggressive and can only set to 1 pixel. This leaves black rings around the stars, which I don't know how to get rid of yet.
Telescope 8" f/4 astrograph.
HEQ Pro5 mount.
Canon 1100D.
Great effort Justin!get that coma corrector In...when using minimum filter(I assume for star reduction) with PS do It in a layer and cycle back the opacity to 50%.
