Expandable 1:10 Micro gear for Synta focuser

Two-speed 1:10 micro-focuser retrofit for W.O. Synta focusers and W.O. Newtonian focusers.

This version will also fit very old Megrez 80 and 90 telescopes (Megrez I series).

Please make sure you order the correct version! If you need the retrofit for the MEGREZ 80 II or ZenithStar 80 please do NOT order this item!

The retrofit has a 10:1 fine/coarse focus ratio. The tension adjustment for your focuser is not affected, so you will still be able to adjust your Crayford to be able to hold more weight or equipment.

Retrofitting it is very easy: simply follow our instructions.