Free Shipping Included! Alstar 1.25'' High Precision Double Helical Focuser with 0.1mm scale for Telescope Lenses / Finder & Guidescope by Alstar at Primeline Info Tech. MPN: 6971336221299. Hurry! Limited time offer. Offer valid only while supplies last. High Precision double helical focuser for guider scope / finder scope Interface The solution for telescopes or telephoto lenses with sluggish
Product Description & Reviews
High Precision double helical focuser for guider scope / finder scope Interface The solution for telescopes or telephoto lenses with sluggish focusing Item was made by Full metal, durable Accuracy 0.1mm Interface: 1.25 inch with M42x0.75 male thread Primary Mirror Interfaces: M31X0.5 Focusing stroke: 10mm Minimum length: 46mm Longest length: 56mm
Features & Highlights
- Accuracy 0.1mm; Focusing stroke: 10mm; Minimum length: 46mm; Longest length: 56mm.
- Interface: 1.25 inch with M42*0.75 male thread, primary Mirror Interfaces: M31X0.5
- Item was made by Full metal, durable. The one side of double helical focuser is M31X0.5 male thread (including a M31X0.5 female thread to M42*0.75 male thread Adapter which you can change M31X0.5 male thread or M42X0.75 male thread on this side), there are 1.25" accessory collar with male T-thread flange (M42x0.75) and Accesory collar thumbscrews on the other side that you can install StarShoot AutoGuider or 1.25" eyepiece.
- Upgrade your R&P focuser by adding it to the end of the R&P focuser by using "Alstar M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm". Note: please make sure that there is M42X0.75 male thread on your R&P focuser.
- High Precision double helical focuser for guider scope / finder scope Interface. The solution for telescopes or telephoto lenses with sluggish focusing.
Telescope & Microscope Accessories
2.3 x 1.8 x 1.8 inches
1.8 x 1.6 x 2.3 inches
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