GEOPTIK FOCUS SPACING ADAPTER cover 9 photographic Newtonian telescope is

9 photographic Newtonian telescope is optimized for astrophotography

Avalon Linear manual  Avalon StarGo manual

the counterweight is provided with a not-protruding set screw

the backlash varies along different points of the worm drive and generally also increases overtime

then centering a third star with the adjustment handles is much quicker than aligning the typical polar finder with date and time

GEOPTIK FOCUS SPACING ADAPTER cover 9 photographic Newtonian telescope isThis adapter is designed for the Geoptik adapter between Canon and CCD CMOS and it increases the distance of 7. 5mm to 10. 5mm. Specifications Material Aluminium Anticorodal AW 6082 T6 SKU 30A189B Alloy composition Chemical Composition Aluminium Anticorodal AW 6082 T6 Si Fe Cu Mn Mg Cr Ni Zn Ti Pb Bi Min 0. 46% 0. 134% 0. 010% 0. 406% 0. 480% 0. 020% 0. 000% 0. 020% 0. 001% 0. 000% 0. 000% Max 1. 34% 0. 525% 0. 101% 1. 000% 1. 250% 0. 250% 0. 000% 0.