Blue Fireball Eyepiece Holder (2") with SCT Female Thread (SCT Visual Back)
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New, Improved Version - Now with 2 large thumbscrews for a more secure grip for heavy accessories.
This high-quality adapter connects to the rear cell of many Schmidt-Cassegrain telescopes made by Meade, Celestron and others. The standard SCT rear cell thread on telescopes is a 2" diameter x 24 TPI male thread. Using this adapter, you can attach 2" diagonals, photo adapters or other accessories to your SCT telescope. If you already have a standard 2" diagonal for your refractor telescope, you won't need a new SCT-type diagonal for your telescope! However, note that this adapter will not accept an SCT-threaded diagonal.
The practical adapter is made from precision machined aluminum and is black anodized. It includes a brass compression ring that clamps around the inserted eyepiece or accessory. Because the set-screw does not come in direct contact with the eyepiece, the eyepiece barrel will not be scratched or dented. The inside surface of this adapter is black-matted to enhance contrast by reducing stray light reflections.
Total length = 48mm (1.89"), Depth of eyepiece holder inside = 40mm (1.57"); Weight = 3.5 oz., Made in Taiwan.
Please note: A number of older Celestron SCTs made in the late 1970s and early 1980s had a non-standard SCT thread (same thread diameter but with a different thread pitch), so this adapter may not screw on to those. We cannot advise you of this before purchase.
Other Information
- Country of Manufacture: Taiwan
New, Improved Version - Now with 2 large thumbscrews for a more secure grip for heavy accessories.
This high-quality adapter connects to the rear cell of many Schmidt-Cassegrain telescopes made by Meade, Celestron and others. The standard SCT rear cell thread on telescopes is a 2" diameter x 24 TPI male thread. Using this adapter, you can attach 2" diagonals, photo adapters or other accessories to your SCT telescope. If you already have a standard 2" diagonal for your refractor telescope, you won't need a new SCT-type diagonal for your telescope! However, note that this adapter will not accept an SCT-threaded diagonal.
The practical adapter is made from precision machined aluminum and is black anodized. It includes a brass compression ring that clamps around the inserted eyepiece or accessory. Because the set-screw does not come in direct contact with the eyepiece, the eyepiece barrel will not be scratched or dented. The inside surface of this adapter is black-matted to enhance contrast by reducing stray light reflections.
Total length = 48mm (1.89"), Depth of eyepiece holder inside = 40mm (1.57"); Weight = 3.5 oz., Made in Taiwan.
Please note: A number of older Celestron SCTs made in the late 1970s and early 1980s had a non-standard SCT thread (same thread diameter but with a different thread pitch), so this adapter may not screw on to those. We cannot advise you of this before purchase.
New, Improved Version - Now with 2 large thumbscrews for a more secure grip for heavy accessories.
This high-quality adapter connects to the rear cell of many Schmidt-Cassegrain telescopes made by Meade, Celestron and others. The standard SCT rear cell thread on telescopes is a 2" diameter x 24 TPI male thread. Using this adapter, you can attach 2" diagonals, photo adapters or other accessories to your SCT telescope. If you already have a standard 2" diagonal for your refractor telescope, you won't need a new SCT-type diagonal for your telescope! However, note that this adapter will not accept an SCT-threaded diagonal.
The practical adapter is made from precision machined aluminum and is black anodized. It includes a brass compression ring that clamps around the inserted eyepiece or accessory. Because the set-screw does not come in direct contact with the eyepiece, the eyepiece barrel will not be scratched or dented. The inside surface of this adapter is black-matted to enhance contrast by reducing stray light reflections.
Total length = 48mm (1.89"), Depth of eyepiece holder inside = 40mm (1.57"); Weight = 3.5 oz., Made in Taiwan.
Please note: A number of older Celestron SCTs made in the late 1970s and early 1980s had a non-standard SCT thread (same thread diameter but with a different thread pitch), so this adapter may not screw on to those. We cannot advise you of this before purchase.
Other Information
- Country of Manufacture: Taiwan
Blue Fireball Eyepiece Holder (2") with SCT Female Thread (SCT Visual Back)