M101 and its SuperNova still shining!
Actually this was my test shot, and first lighting of newly purchased GS Optics RC-10" Carbon Tube. I have upgraded the troublesome focuser to Feather Touch 3015, and for this extra long focal length guiding I have added AO-8 Adapative Optics unit.
Total exposure was 4 hrs 20 mins, but at this 2000 mm Focal length and F8, I think I need still longer exposure.
OTA: GSO RC-10" Carbon
Mount: ADT MC300
Camera: SBIG ST-10XE /AO-8
Exposure: L=11X600s (1x1), R/G/B=5X600s (2x2)
Location: YangPyung, S. Korea