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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 /Antares / ClearVue / Burgess / ScopeStuff and other Crayford focusers which have a flange outer diameter of 86.1mm (3.39").
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.
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