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Antares Crayford Adapter Plate/Bushing for Celestron, Orion and Sky Watcher Refractors
| Brand | Antares |
| Part Number | - |
| Availability | |
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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
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Item
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Telescope Side
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Length
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Weight (oz)
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Telescope Compatibility
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Inside Diameter (mm / inches)
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Outside Diameter (mm / inches)
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A102
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87mm / 3.43"
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96mm / 3.78"
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32mm / 1.26"
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3.8oz
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102mm telescopes by Celestron, Konus, Orion, Skywatcher and others
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A120
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101mm / 3.98"
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111.5mm / 4.39"
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38mm / 1.50"
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7.1oz
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120mm telescopes by Celestron, Konus, Orion, Skywatcher and others
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A150
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122mm / 4.80"
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138mm / 5.43"
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39mm / 1.54"
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12.9oz
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150mm telescopes Celestron, Konus, Orion, Skywatcher and others
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J102
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86.5mm / 3.41"
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98.5mm / 3.88"
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32mm / 1.26"
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4.2oz
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102mm Antares and Meade telescopes
(Antares models 1056, 1051, 10513, 10515) |
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J120
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130mm / 5.12"
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139.5mm / 5.49"
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39mm
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10.0oz
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127mm Antares and Meade telescopes
(Antares models 1208, 12012 and Meade model AR5) |
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J150
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157mm / 6.18"
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170mm / 6.69"
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39mm
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14.2oz
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152mm Antares and Meade telescopes
(Antares model 1529 and Meade model AR6) |
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CR-SCT
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~50mm / 1.97" (Std. SCT Thread)
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89mm / 3.50"
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40mm / 1.57"
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8.3oz
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Meade and Celestron Schmidt-Cassegrain telescopes
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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
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Mar 23, 2013
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? YesThis review was provided courtesy of AgenaAstro.com
Sep 21, 2012Antares 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.
Bottom Line: Would you recommend this item? Yes
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.This review was provided courtesy of AgenaAstro.com
Kevin New Member
- Skill Level
- Unknown
- Time with Product
- Unknown
- User Notes:
- Review by Fishonkevin of Michigan.
May 26, 2009Fit 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? YesThis review was provided courtesy of AgenaAstro.com
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