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Opticstar Collimating Rings & Dovetail for 58mm-120mm Guide Scopes
Mount a guide scope on standard mount saddles
Opticstar 120mm Collimating Rings & Dovetail.
  • For telescope tubes between 58mm - 120mm in diameter
  • Pair of 120mm Collimating Rings
  • 160mm long dovetail bar
  • For Vixen-style saddles:
    • Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, EQ6 PRO, NEQ6 PRO
    • Celestron VX, CG-5
    • Opticstar mounts
    • Vixen mounts
  • Metal construction
Opticstar Visual
CCD Cameras
Opticstar Imaging
Opticstar Collimating Rings & Dovetail for 58mm-120mm Guide Scopes
Model / Description View in Showroom Order code Price inc VAT Shipping Dispatched witnin click button to purchase
OS Rings 58mm-120mm no OSRCR121 £ 34.95 £ 5.00 24 hours

Set of two collimating rings and Vixen/Skywatcher style dovetail with fitting screws to mount a guide scope on standard mount saddles as found on the Sky-Watcher, Celestron CG-5, VX, Opticstar, Vixen and other mounts.

The rings will accept tubes between 58mm-120mm in diameter with the supplied knobs. The dovetail has a length of 160mm and comes with a 1/4" photographic thread at the centre of its base. It is suitable for Vixen-style saddles including Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, EQ6 PRO, NEQ6 PRO, Celestron CG-5 & VX, Opticstar EQ700, EG1300 GT etc.

Two sets of short and long threaded knobs are supplied for your convenience. The shorter threaded knobs can be used with tubes of large diameter so that these do not protrude.
Opticstar 120mm Collimating Rings & Dovetail.
  • 2 x guide scope rings (120mm internal diameter)
  • 2 x M5 bolts (for attaching rings to supplied dovertail)
  • 6 x M5 threaded knobs (20mm thread)
  • 6 x M5 threaded knobs (40mm thread)
  • 1 x Vixen/Skywatcher style dovetail (160mm length, 1/4" thread at the centre of its base)

Opticstar 120mm Collimating Rings & Dovetail.

Opticstar 120mm Collimating Rings & Dovetail.

We are constantly checking the accuracy of the technical data. We are prepared to provide more detailed information on request. Technical data is subject to change without notice.

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Opticstar News
New DS-616C XL+ Model
posted: 24th August 2017
Opticstar DS-616C XL+.
Star product, improved.

The new Opticstar DS-616C XL+ deep-sky CCD is the successor to the popular DS-616C XL that earned the annual star product award back in 2013. It maintains all the features of the original model as well as other improvements.

DS-616C XL is Astronomy Magazine's Star Product
posted: 12th September 2013
Opticstar DS-616C XL is Astronomy magazine's product of the year.
Star product.

The Opticstar DS-616C XL deep-sky CCD camera has earned the annual star product award from Astronomy, the world's best-selling astronomy magazine. Read about it in the September 2013 issue.

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updated: 18th June 2019
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Willmann Bell
Books for Astronomy
updated: 20th September 2019
Willman Bell books.
Acclaimed books from Willmann Bell...
Opticstar News
Imaging Brochure
updated: 10th February 2014
Opticstar brochure.
Download the Opticstar imaging catalogue here.
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A&M 152mm f/8 Review
"Fantastic Performance" "Beauty of a Ferrari"
updated: 25th March 2009
A&M 152mm f/8 TMB.
Read the latest review about the A&M 152mm f/8 A&M/TMB on Cloudy Nights. According to the review this telescope combines the "beauty of a Ferrari" with "fantastic performance". The review also states that "the manufacturer's claims are valid".
We want to hear your comments.
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