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  $52 ♡ +

  50mm Extension Tube 2"

  This tube gives 50mm of extension. It has a self centering twist top which provides for a straight / non-tilted alignment and gives an easy lock and release of eyepieces and accessories.Threaded for standard 2" filters and accessoriesTotal length = 85mm, Extension provided is 50mm.

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  $52 ♡ +

  80mm Extension Tube 2"

  This tube gives 80mm of extension. It has a self centering twist top which provides for a straight / non-tilted alignment and gives an easy lock and release of eyepieces and accessories.Threaded for standard 2" filters and accessoriesTotal length = 115mm, Extension provided is 80mm.

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  $48 ♡ +

  35mm Extension Tube 2"

  This tube gives 35mm of extension. It has a self centering twist top which provides for a straight / non-tilted alignment and gives an easy lock and release of eyepieces and accessories.Threaded for standard 2" filters and accessoriesTotal length = 70mm, Extension provided is 35mm.

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  $12 ♡ +

  25mm Extension Tube 1.25"

  Provides a 25mm extension to a 1.25" imaging / focuser train.Threaded for 1.25" filters and accessoriesExtension provided is 25mm.

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  $75 ♡ +

  Tube Rings

  Tube Ring (pair)These split and hinged optical tube mounting rings are made of cast-aluminum, feature quick release, hinged clamp knobs and felt lining. Designed for use with GSO mounts, they also fit with some other brands of mounts as well.Inside diameter (ID) is listed. Choose the size that match...

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  $32 ♡ +

  50mm Focuser Extension 8"

  This 50mm Focuser Extension Tube is designed for the Astronz/GSO 8" Ritchey-Chretien and Classic Cassegrain telescopes.This sturdy extension inserts between the telescope back and the focuser to enable you to adjust for the back focus required for your setup.

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  $32 ♡ +

  25mm Focuser Extension 8"

  This 25mm Focuser Extension Tube is designed for the Astronz/GSO 8" Ritchey-Chretien and Classic Cassegrain telescopes.This sturdy extension inserts between the telescope back and the focuser to enable you to adjust for the back focus required for your setup.

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