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Antares Crayford Adapter Plate/Bushing for Celestron, Orion and Sky Watcher Refractors

5.0 (3 Reviews) Read Reviews Write Review
Brand Antares
Part Number -
Availability

Product Info

Manufacturer Description

Description

Antares sells a variety of adapters/bushings to attach GSO-style Crayford focusers to many telescopes. It is a trivial matter to remove the base plate from a GSO focuser and insert the focuser into any one of the adapters below using a small allen key (not included). The telescope side of these adapters has three screw holes to attach the assembly to your telescope tube (except the SCT adapter). All adapters are machined out of aluminum and anodized black.

Antares Crayford Focuser Adapter Specifications

Item
Telescope Side
Length
Weight (oz)
Telescope Compatibility
 
Inside Diameter (mm / inches)
Outside Diameter (mm / inches)
 
 
 
A102
87mm / 3.43"
96mm / 3.78"
32mm / 1.26"
3.8oz
102mm telescopes by Celestron, Konus, Orion, Skywatcher and others
A120
101mm / 3.98"
111.5mm / 4.39"
38mm / 1.50"
7.1oz
120mm telescopes by Celestron, Konus, Orion, Skywatcher and others
A150
122mm / 4.80"
138mm / 5.43"
39mm / 1.54"
12.9oz
150mm telescopes Celestron, Konus, Orion, Skywatcher and others
J102
86.5mm / 3.41"
98.5mm / 3.88"
32mm / 1.26"
4.2oz
102mm Antares and Meade telescopes
(Antares models 1056, 1051, 10513, 10515)
J120
130mm / 5.12"
139.5mm / 5.49"
39mm
10.0oz
127mm Antares and Meade telescopes
(Antares models 1208, 12012 and Meade model AR5)
J150
157mm / 6.18"
170mm / 6.69"
39mm
14.2oz
152mm Antares and Meade telescopes
(Antares model 1529 and Meade model AR6)
CR-SCT
~50mm / 1.97" (Std. SCT Thread)
89mm / 3.50"
40mm / 1.57"
8.3oz
Meade and Celestron Schmidt-Cassegrain telescopes

Notes:

1. On the focuser/eyepiece side, all the above adapters have an inner diameter of 86.5mm (3.41"). These are designed to accept GSO's Crayford refractor focusers which have a flange outer diameter of 86.4mm (3.40"). These will not work with GSO's reflector or SCT focusers, or focusers from other brands.

2. The A102/120/150 adapters usually fit inside the telescope tube.

3. The J102/120/150 adapters usually fit outside the telescope tube.

4. These adapters will also fit many other telescopes and brands not listed above. However, to determine compatibility, please measure your telescope tube dimensions and use the above specification table to find which adapter will work for you. We are unable to recommend adapters for telescopes not listed above.

Reviews

5.0 (Based on 3 Reviews) 100% of reviewers recommended this product.
Rating Distribution
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    1. Guest

      Skill Level
      Unknown
      Time with Product
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      User Notes:
      Review by Max Headroom of Vail, AZ.
      1364083200
      Mar 23, 2013

      5.0 Better alignment than the stock focuser

      Pros:

      Accurate,Easy to Use,Strong Construction,Lightweight

      Cons:

      Comments:

      This adapter was for placing a GSO crayford focuser on my old widestar 127 refractor. There have always been collimation problems because the stock focuser assembly did not fit well and was shimmed with some cloth tape, and would shift sometimes.. Although it's not perfect, the new plate does not shift and is better centered.

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

      This review was provided courtesy of AgenaAstro.com

    2. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Dave of Southeast PA.
      1348272000
      Sep 21, 2012

      5.0 Antares Crayford Adapter Plate - Synta

      Pros:

      Easy to Use,Strong Construction

      Cons:

      Comments:

      I got the A150 adapter for my Celestron 150 f/5 OTA (Omni XLT 150 R). I like this tube for wide starfields, and I wanted a better focuser than the Synta unit that is standard. I had the focuser, I bought the adapter, and now I am a happy observer.

      One plus I hadn't expected is that I can put in my binoviewer, and with the focuser racked all the way in, I can get focus WITHOUT any optical compensation (I have focusable diopters.) This gives me the widest fields with no fuzziness at the edge of the field. That makes this a doubly good upgrade.

      Overall, I am pleased with this adapter and Agena's service.

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

      This review was provided courtesy of AgenaAstro.com

    3. Kevin

      Kevin New Member

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Fishonkevin of Michigan.
      1243382400
      May 26, 2009

      5.0 Fit Like a Glove

      Pros:

      Strong Construction,Solid,Accurate

      Cons:

      Comments:

      An "Adapter is an Adapter" is not always true. These are very well-made, with the pre-drilled holes in the right places. I'll definitely be using another one when I upgrade a focuser.

      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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