This is a sequel to my previous thread about my first light with TEC 160FL but only in Luminance.
I finally capture color images taken with my almost new TEC 160FL. RGB was blended with Luminance taken two days ago. The FOV was too small to include the Hamburger galaxy so I opted for M65 and M66. The seeing condition was not good and the background looked a little "dirty" so it was not easy processing "dirty" background. Looks like there's no blue star bloats from TEC 160FL which contains fluorite glass but TEC Field Flattener was also used and could also help deal with blue star bloats as well.
High resolution image available at: https://peternagy.sm...ies/i-kXGTxHz/A
Leo Doublet (M65 & M66) . RGB + Luminance. 0.84"/pixel image scale.
Astrodon I series Red filter, 12 x 5 minutes, 1x1. 4/24/2019.
Astrodon I series Green filter, 12 x 5 minutes, 1x1. 4/24/2019.
Astrodon I series Blue filter, 12 x 5 minutes, 1x1. 4/24/2019.
Astrodon I series Lum filter, 36x 5 minutes, 1x1. 4/22/2019.
Total 6 hours.
TEC 160 APO F/7 with TEC Field Flattener, Astro-Physics A-P1100GTO GEM with absolute encoders. QSI660wsg. OAG and Ultrastar autoguider (1.19"/sec), Optec Handy Stepper Motor focuser.
Captured and automated with SGP. Calibration and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 2000, Min Move: 0.67 (0.80"), Calibration Steps: 200msec, Auto/Resist Switching, Auto guiding exposure and extreme dithering.