William Optics 1:10 - Precision focus for smoother and sharper adjustment
With the William Optics 1:10 microfocuser, you instantly upgrade your focuser to true precision. You no longer turn “approximately”, but find the exact point where your image becomes sharp faster. Especially at high magnifications you will notice the difference immediately: small movements give much more control, making it easier to keep your object in focus.

The 1:10 ratio feels light and smooth. You get fine control without the focuser sagging, even when working with heavier accessories. You retain all the functions of your existing Crayford focuser, including tension adjustment. That means you can carry more weight without instability. You simply enjoy extra precision without giving anything up.
Installation is easy. You follow the steps and assemble the unit without fuss. This version fits W.O. Synta focusers, W.O. Newtonian focusers and older Megrez 80 and 90 telescopes from the first series. This way you get more out of a telescope you may have been using for years.
Be sure to order the correct version, though. Are you using a Megrez 80 II or ZenithStar 80? Then you need a different retrofit.
Specifications
General
| Feature | Description |
|---|---|
| Type | Microfocuser retrofit |
| Fine/coarse ratio | 10:1 |
| Compatibility | W.O. Synta focusers, W.O. Newtonian focusers, Megrez 80/90 (I-series) |
| Installation | Retrofittable |






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