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Cheshire Eyepieces & Collimation Tools

7 Items

Astro Systems 1.25" Autocollimator Eyepiece - AUTOCOL

SKU: AST-AUTOCOL
  • This AstroSystems 1.25" Autocollimator fine tunes optical alignment following the use of the LightPipe/SightTube or laser collimator.
  • Uses a flat mirror to provide the optical system with a second reflection.
  • Doubles the accuracy of a Cheshire, LightPipe, or laser collimator.
  • Comes with a 14-page instruction booklet.
$49.00

Astro Systems Lite Pipe / Site Tube Combo - 1.25" - LPST

SKU: AST-LPST
  • This AstroSystems collimator combines LightPipe and SiteTube collimators into one simple, low-cost device.
  • LightPipe accurately aligns Newtonian reflector telescope optics, while the SightTube accurately aligns the focuser with the secondary mirror.
  • Construction consists of precision-designed anodized aluminum, acrylic insert, and stainless steel crosshair wires.
  • Comes with a 14-page instruction booklet.
$49.00

AstroZap Artificial Star - AZ-1600

SKU: AZP-AZ1600
  • The AstroZap Artificial Star is suitable for use as a telescope collimator.
  • Works as both a tabletop unit or attached to a standard photo tripod via the 1/4-20 adapter found on the underside.
  • Provides a false star for all star party attendees.
  • The star generated by this device does not move and thus prevents any problems with tracking or centering.
  • Atmospheric conditions, no matter how severe, will not affect the accuracy of the collimation provided by the AstroZap Artificial Star.
  • Proper AstroZap Artificial Star placement depends on the telescope model being used.
$110.00
Celestron Collimation Eyepiece for 1.25" Focusers

Celestron 1.25" Cheshire Collimation Eyepiece - 94182

SKU: CEL-94182
  • Optimally suited for precisely collimating Newtonian reflector telescopes, this Celestron 1.25" Cheshire Collimation Eyepiece is capable of aligning Schmidt-Cassegrains as well.
  • Fits 1.25" focusers and diagonals.
  • A small opening on one end and tiny cross hairs on the opposite end facilitate easy alignment.
  • Offers accuracy superior to simple collimation tools.
$39.95 $32.95

Farpoint 1.25" Collimating Cheshire Eyepiece - Blue - FP260

SKU: FAR-FP260
  • Virtually indestructible, this blue Farpoint Cheshire Collimation Eyepiece is a precision-machined alignment tool for 1.25" apertures.
  • Requires no batteries and comes with a mirror spotting template and triangle center spots to make center spotting a primary mirror an easier process.
  • The Cheshire collimating eyepiece peephole is inserted to replace the telescope focuser eyepiece.
  • Cheshire eyepieces do not have any lenses or other polished optical surfaces.
$30.00

Farpoint 2" Collimating Cheshire Eyepiece - Red - FP261

SKU: FAR-FP261
  • Virtually indestructible, this red Farpoint Cheshire Collimation Eyepiece is a precision-machined alignment tool for 2" apertures.
  • Requires no batteries and comes with a mirror spotting template and triangle center spots to make center spotting a primary mirror an easier process.
  • The Cheshire collimating eyepiece peephole is inserted to replace the telescope focuser eyepiece.
  • Cheshire eyepieces do not have any lenses or other polished optical surfaces.
$40.00
Orion Telescope Collimation Eyepiece

Orion Telescope Collimating Eyepiece - 4411

SKU: ORI-4411
  • For guaranteed precisely aligned reflector telescope optics, use this convenient Orion Telescope Collimating Eyepiece.
  • Combines a 1.25” Cheshire eyepiece with a sight tube measuring 5” in length.
  • Essential for aligning the internal optics of Newtonian reflectors, Dobsonians, and Schmidt-Cassegrain telescopes.
  • Includes a top peephole and bottom crosshairs with foldable eyeguard for removing glare during use.
  • Works with 1.25” telescope focusers as well as 2” focusers using a separately available 1.25” step-down adapter.
$39.99