8 inch f/4 First Light - Guiding Test (NGC7635)


(Click to enlarge)
This image © Copyright 2018, Michael Fulbright

My first image with this new telescope (TS 8 inch f/5 ONTC) was M27. I took lots of 15 second exposures so I could get a good feel for how well the coma corrector was working. The stars looked reasonable in that shot so I moved on to trying to guide this large scope. I am using a AP Mach1 and it seemed to barely notice the scope was on it! I estimate the weight of the ONTC and guider and camera is around 35 lbs. The guider is a little 50mm finder scope I converted to use an Orion SSAG camera. It rides on the back of the main scope.

Date: 10/04/2016
Telescope: Teleskop-Service ONTC 8" f4
Mount: Astro-Physics Mach1GTO
Camera: ZWO ASI1600MM-Cool
Exposure: Baader H-alpha 7nm: 45x90" (gain: 225.00) -10C bin 1x1