90mm I.D. rings, 3 point adjustment, 2 each, mounted on a 8" long Vixen style dovetail bar

Bahtinov Focus Mask for telescopes with dew shield from 3.5" to 6.5" in diameter

Bahtinov focus mask for telescopes with dew shield O.D. from 6.5" to 9.5" diameter

Bahtinov Focus Mask for  Celestron Schmidt Cassegrain 8" telescope

Celestron CGE Knob and Adjustment Wrench Kit Replaces small button head screws for tool-free field assembly.

Collimation Kit - 2" with Carrying Case Farpoint stepped barrel 650nm laser collimator plus 2" cheshire. Includes hard carrying case with fitted foam insert.

Collimation Spring Kit for Meade 16" LightBridge Upgrade to our heavy-duty collimation springs to keep your primary mirror in alignment.

DRP (Desiccant Replacement Plug) for the SBIG (Santa Barbara Instruments Group) ST Series CCD cameras allows for quick and easy changing of the desiccant pack for your camera. Fits ST-7, 8, 9, 10, 1001, 2000, 4000 (E, XE, XME) series cameras. Our...

Dew Shield 11" Celestron SCT Flexible dew shield for 11" diameter Celestron Schmidt-Cassegrain telescopes.

Dew Shield 14" Celestron SCT Flexible dew shield for 14" diameter Celestron Schmidt-Cassegrain telescopes.

Dew Shield 16" Meade SCT Flexible dew shield for 16" diameter Meade Schmidt-Cassegrain telescopes.

Dew Shield 9.25" Celestron SCT Flexible dew shield for 9.25" diameter Celestron Schmidt-Cassegrain telescopes.