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Specification:
Condition: Brand New
Item Type: Helical Focuser
Model: YZ-18836
Material: Aluminium Alloy
Color: As Pictures Shown
Quantity: 1PCS
Weight: Approx. 128gThread: M42*0.75 Accuracy: 0.05mm
Focusing Stroke: Approx. 10mm/0.39inch
Package List:
1 x Helical Focuser
Alphajuno
Reviewed in the United States on March 30, 2021
If you have an M42 female adapter, you can use this focuser for fine adjustment instead of using the scope focuser which can cause image shift on an SCT or Mak-Cas for example. Alternatively, could be used with a guider with a M42 female adapter attached.The locking thumbscrew for the focuser has just a very slight amount of play after tightened - .1mm or so. Accepts a 1.25" eyepiece on the other end or you can mate it to another M42 female adapter or M42 camera threads for instance. The length is 55mm. Nicely designed.
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