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I agreeImaging telescope or lens:Samyang 135 ED UMC F2
Mount:SkyWatcher Neq 6 Pro Synscan
Guiding camera:ZWO ASI 120 MM Mini
Software:APP, PHD2 Guiding PHD 2.6, Abode CS 6
Filter:Optolong L-eNhance 2" Narrow Line Filter for ONC Hb, O3, Ha
Accessory:ZWO ASIAIR ZWO ASI AIR
Resolution: 5500x3697
Dates:Sept. 21, 2019
Frames: 114x120"
Integration: 3.8 hours
Avg. Moon age: 21.54 days
Avg. Moon phase: 56.49%
Astrometry.net job: 2971401
RA center: 2h 52' 11"
DEC center: +60° 46' 19"
Pixel scale: 3.681 arcsec/pixel
Orientation: 45.298 degrees
Field radius: 3.388
Locations: Home Observatory, NESTON, WIRRAL, United Kingdom
Data source: Backyard
I have just bought a Samyang 135mm mainly due to all the excellent images I have seen here and reviews from various well known Youtube astro photograhers such as Trevor from AstroBackyard. This is my 1st attempt at F2 and I am very happy with the result (yes I know it's far from perfect). I used the ASI Air alongside my NEQ6 (StellarDrive converted by Dave at Darkframe in the UK) instead of a PC to control my ZWO ASI 183MC connected to the Samyang 135mm FC lens but fitted the Optolong L-eNhance 2" filter, which is a narrow band filter for OSC camera's giving line separation in Hb, O3, and Ha. I used Astro Pixel Processor version 1.75 beta, and Photoshop for final processing.
I noticed that the dark frame removal of the horrendous amp glow inherent on all ZWO 183 camera's had not cut the mustard on the 1st publication, so I re-did the darks and also did 3 x intterations of the integration of the Dark frames in Calibrate within APP, this looks to of bottomed out the amp glow!
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