Here’s another ISO 6400 test image and I think it came out pretty well.  Temps were only in the mid to low 60’s, so noise was an issue.  However, the test reveals that with enough sub-images, the noise can be smoothed out.   I did notice that there was a remnant pattern noise that I see when guiding was off and tracking in a certain direction.  Dithering during guiding would help for that, but I did not set that option during my imaging session.  For sure I’ll try that next time.

Recently, I purchased a new monitor (a Dell 22″ LCD) and needed a good background image for it.   My M31 data from 2011 had some issues, so I re-worked it a little and rotated it to a landscape orientation instead of the portrait orientation that I had used before.  Now, it makes a great background image for that new monitor!  🙂

This is a test image with a GSO 8 inch Newtonian telescope and my Canon T3 DSLR.   16×180 sec @ ISO 3200.

Here’s an M33 that I acquired 57×180 sec ISO 1600 sub-images of data for on Nov 9th, 2012. I used a GSO 8″ F/4 newt with an MPCC that I’ve been toying with lately. Its got that funky spikes thing going on with the 3 vane spider. But, it was sitting around for 5 yrs gathering dust, so I thought I’d put it to use.

I cheated a little for this image since I mixed in a little color from a data set taken with a TV-85 last year that was pretty good. Used Registar. It works miracles when mixing different data sets. Glad I have it.

Here’s a famous edge-on galaxy that I like to shoot from time to time.   This particular rendition was created with the help of a Meade Schmidt-Newtonian with a 6″ mirror.  Exposure: 50×180 sec @ ISO 1600, modified Canon T3.

The Great Andromeda Galaxy.  Visible to the naked eye and its also the closest large galaxy to our own Milky Way Galaxy.    A small asteroid was cruising through the area when this data was obtained.  TV-85 at F/5.6, Canon 350 XT (modified,) 68×240″ ISO1600.

This image was taken with an 8″ F/4 Schmidt-Newtonian telescope.  32×6 minute exposures @ ISO 800 were used.