TESTAR 50mm GUIDE SCOPE ZWO Lens The PLUS tube rings from

The PLUS tube rings from Prima Luce Lab are a perfect match to securely mount your ZWO cooled deep sky cameras when using a camera lens that doesn't have a traditional dovetail mounting system

A great alternative use of your camera lenses for wide field astrophotography

The iOptron GEM45 is an innovative next-generation German equatorial mount

Ø 62mm + 1 x roller bearing Ø 72mm + 2 x roller bearing Ø 45mm – On bearings clutch system DEC axis

1500mm - 95kg Required hole depth in cement 125 mm Required cement thickness 150 mm minimum

TESTAR 50mm GUIDE SCOPE ZWO Lens The PLUS tube rings fromThe Testar 50mm Guide Scope has a focal length of 190mm and a focal ratio of f 3. 8. The objective is a fully multi coated achromatic doublet for a greater optical precision. The border of the lenses are blackened to deliver a higher contrast. The 69mm support rings have 3 screws with a nylon tip for a perfect alignment with the main telescope. Having the guide scope aligned to the main telescope increases the guiding accuracy and it reduces the field