Great Orion Nebula in Ha
After another night of collimation, the setup is getting closer to a workable state. It's surprising how awake you stay the whole night when temperatures are again in the freezing portion of the scale.
I'm setting up a Teleskop-Service version of Boren-Simon PowerNewt 8 f/2.8. Actual focal length is now 604mm, which makes it an f/3, but still a bit of an improvement from the C8+Crayford+reducer f/7.
The small pixels of the camera in use (Trius SX814) are perhaps a bit too small for the ASA Keller reducer drawing capabilities.
10x 60s with Baader 7nm Ha, no calibration frames used yet.
Great Orion Nebula in Ha
After another night of collimation, the setup is getting closer to a workable state. It's surprising how awake you stay the whole night when temperatures are again in the freezing portion of the scale.
I'm setting up a Teleskop-Service version of Boren-Simon PowerNewt 8 f/2.8. Actual focal length is now 604mm, which makes it an f/3, but still a bit of an improvement from the C8+Crayford+reducer f/7.
The small pixels of the camera in use (Trius SX814) are perhaps a bit too small for the ASA Keller reducer drawing capabilities.
10x 60s with Baader 7nm Ha, no calibration frames used yet.