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William Optics Crayford Focuser for Synta Refractors - Dual Speed

4.0 (1 Reviews) Read Reviews Write Review
Brand William Optics
Part Number F-SYN2S-N

Product Info

Manufacturer Description

This newly-redesigned 2" Crayford focuser is designed to fit Synta-made Skywatcher, Celestron, Orion and other refractors (in which the inner tube diameter is 96mm or a bit larger). It will add functionality and style to your observations, assuring imaging without any image-shift, better star testing, and a touch of William Optics's quality. The ideal upgrade for your refractor of any size!

Fine Focusing
2 Crayford focuser: smooth and precise. Zero image shift.360 degreee rotatable.
Now with a new one-piece dual speed reduction.
Solid as a rock, smooth like feather.
Brass compression rings both on 2 drawtube nosepiece and 1.25 eyepiece adapter.
Large aluminum knobs.

Impeccable Fit and Finish
Drawtube locking thumbscrew with adjustable tension. Your new focuser will accommodate any accessory such as CCD cameras, large eyepieces, binoviewers, etc.
Completely CNC-machined, anodized black aluminum.
Long drawtube (81 mm).

Easy to Mount
Requires only minimum assembly on your part. Replacing your bundle die-cast rock-and-pinion has never been easier: release 3 screws, and get ready for observing in 3 minutes! Will fit many telescopes from 3 to 6 with a tube diameter or step-down collar of 96mm or slightly larger.


- 2" extension tube is recommend with 5" and 6" Synta refractors
- 2 360 deg. Rotatable Crayford Focuser With Zero Image Shift Dual speed microfocuser: 1:10 reduction
- Drawtube Travel Length 3.19" (81 mm)
- 1.25" Adapter with brass Compression Ring
- Weight: 1250g


4.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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      User Notes:
      Review by litebkt of Mariposa, CA.
      Jan 6, 2011

      4.0 It's pretty much the only choice.


      Strong Construction,Compact



      This is pretty much the only choice for reticle eyepieces and for finder scopes. And it is only available here. I did purchase another brand a while back that had a flashing feature but it was big, bulky, and broke after first use.

      It would be nice for these things to turn off automatically after a few hours of non use. I just can't seem to remember to turn them off and I'm always replacing batteries.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Manufacturer William Optics
      Focuser Telescope Type Refractor