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Astromania 1.25" High Precision Double Helical Focuser with 0.05mm scale for Telescope Lenses/Finder & Guidescope

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    The United States
(50 available)
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The micro-speed focuser provides precise focusing with almost any telescope. This is ideal for photography and observation of planets and lunar craters. At many telescopes, focusing is too coarse, so you will need a lot of luck for achieving the best focus point.

A further advantage is that the accessories, like a camera, do not rotate with the focuser. Therefore the orientation of the image remains unchanged. Via the optional adapter T2i-T2i, the focuser can be easily attached to any male T2-thread, so the connection to your telescope becomes child´s play.

Upgrade your R&P focuser

Many telescopes have a focuser which does not allow very precise focusing. Especially difficult jobs such as focusing on a planet can be a real challenge. This helical focuser elegantly overcomes the problem. You need to do nothing more than to connect it to your existing focuser.

Upgrade your R&P focuser: Via the optional adapter "Astromania M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm - ASIN: B01NCS8RW6". the focuser can be easily attached to any male T2-thread, so the connection to your telescope becomes child´s play. 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. The Focuser has a fixed orientation - so there is no rotation of mounted cameras or eyepieces - or also the field of view with your guide star - when focusing.
  • Upgrade your R&P focuser by adding it to the end of the R&P focuser by using "Astromania 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.
  • 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.
  • Interface: 1.25 inch with M42*0.75 male thread, primary Mirror Interfaces: M31X0.5/M42X0.75
  • Accuracy 0.05mm; Focusing stroke: 10mm; Minimum length: 46mm; Longest length: 56mm.
  • We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
  • Your order will be shipped within 2 business day normally once we receive your payment.
  • We will provide an online tracking number to you once the item has been shipped.
  • If you have any problem with shipment, please feel free to contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
  • If you have special needs or you live in area where only specific carrier is available please inform us prior to shipping.
Customer satisfaction is our top priority, and to remain competitive in today's marketplace with your satisfaction we offer 7-Days DOA (Dead-on-arrival) warranty on all products. All products shipped by us go through rigorous testing and are guaranteed to work when they reach you. If you find that the item is non-operative when you try to install that, please contact us within 7 days of receiving. This covers any failure of the product after 7 days of the initial DOA warranty. This provides an extra peace of mind just in case you feel that the item is not performing upto your expectations. We are not liable for items shipped back to us. We recommend that customers use track able method whenever shipping any products back to us.

Note: All Warranty claims are subject to verification prior to decision is made on Refund or Replacement. Warranty doesn't cover any claims if the item is incompatible, ordered wrong, or simply not needed. 
Please contact us if you have any questions or concerns. We will respond back to your message within 24 hours.
Average rating: 5.0 based on 78 reviews
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