TS-PHOTON 8" F4 Advanced Newtonian OTA Baader found two additional primary

Baader found two additional primary factors played into the equation – eye relief (and the related large eye lens size) and ease of viewing (a combination of long eye relief and control of pupil aberrations)

Interestingly

Mounting type  Equatorial  Type of build  EQ-3 GoTo control  no

Adjustable eyepiece cup  yes (folding) Optional camera adaptor yes Filter thread  yes

control automatically reverts to the normal tracking speed

TS-PHOTON 8" F4 Advanced Newtonian OTA Baader found two additional primaryFeatures Fast parabolic optics with outstanding contrast and very good sharpness for planetary observations. High quality 2" Crayford focuser with 1: 10 dual speed for 2" and 1. 25" accessories. Focus position perfect for DSLR and other cameras. All popular 1. 25" and 2" eyepieces can be used without problems. Brighter image through enhanced 94% reflectivity of primary and secondary mirror. Motor focus can be retrofitted at any time. A 0. 5 mm thin