Skywatcher ED80 at Perth Observatory
Telescope - Skywatcher ED80 80/600 with Long Perng 0.6x Reducer, No filter, Baader BCF modified Canon 70D DSLR field 141' x 212' , Ambient 10C. EQMOD EQASCOM with Ascom 6 for mount control. Backyard EOS Pro 3.1.8 for Image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Starlight Xpress SuperStar (Mono) CCD Auto Guider and Stark Labs PHD auto guiding software.
2017 Calendar ChallengeDagger BayEquipmentGuidescopeOrion ST80MountSkywatcher NEQ6TelescopeSkywatcher ED80
Astro Richard
on December 26, 2017thank you for your answer
Geoff Scott
on December 25, 2017Richard, The field flatness drops of quite noticeably with the 0.6X Long Perng witht he 80mm f/7.5 ED80. It was an experiment on my part and after croping to acceptable levels a 0.8X flattener would be a better choice.
Astro Richard
on December 25, 2017Hi , what do you think of the Long Perng 0.6x Reducer. Do you have any coma with your ED80 80/600 ? thank you Richard from Toulouse France