Extension Tubes

Orion tele-extenders permit high-magnification "eyepiece projection" photography of the Moon and planets with a Schmidt-Cassegrain telescope. Orion tele-extenders are designed to fit all Celestron and Meade Schmidt-Cassegrain telescopes.

Made of anodized aluminum, the tele-extender fits over a 1.25" telescope eyepiece, with one end threading onto the eyepiece holder (visual back) of the telescope, the other end threading into the T-ring (sold separately) on your camera body.

This Standard Tele-Extender is a fixed-length cylinder that provides a single projection magnification depending on the focal length of the eyepiece you use.

Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

This 2" extension tube by Takahashi is compatible with the TOA-130.

Reduces focuser travel with 55 Plossl. Includes filter threads

Includes brass clamp ring

Includes brass clamp ring

Allows astrophotography for many telescopes needing more back-focus by moving the film plane back up to a maximum of 2.6".

This 18mm eyepiece is often an excellent medium magnification eyepiece while still preserving a very comfortable 20mm of eye-relief. With 50 degrees of Apparent Field of View the Moon, Galaxies, Globular Clusters and Nebulae are great targets often with this eyepiece.

Enhances the ability to perform astrophotography for many telescopes needing more back-focus, by moving the film plane back up to a maximum of 40mm.

Adds 20mm of length to the R200SS Optical tube and allows attachment of a 42mm T thread to 43mm accessory. This is customarily used with optional item number 3523 for eyepiece projection photography

This Half Pillar provides a 9" extension between the counterweight shaft or longer tube refractor and the tripod legs