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Used Telescopes Buyback

Crosshair & Reticle Telescope Eyepieces

7 Items

Celestron CrossAim 12.5 mm 1.25" Reticle Eyepiece - 93235

SKU: CEL-93235
  • Focal Length: 12.5 mm
  • Apparent Field of View: 40 degrees
  • Barrel Size: 1.25"
  • Eye Relief: 10 mm
$92.95
Stellarvue 23 mm Reticle Eyepiece - 1.25"

Stellarvue 23 mm Reticle 1.25" Eyepiece - E3023R

SKU: STV-E3023R
  • Focal Length: 23 mm
  • Apparent Field of View: 50 degrees
  • Barrel Size: 1.25"
  • Eye Relief: 18 mm
$69.00

Stellarvue 26 mm Reticle 2" Eyepiece - E7026R

SKU: STV-E7026R
  • Focal Length: 26 mm
  • Apparent Field of View: 70 degrees
  • Barrel Size: 2"
  • Eye Relief: 20 mm
$149.00
Meade 9 mm Wireless Illuminated Reticle Eyepiece - 1.25"

Meade 9 mm Illuminated Reticle Plossl 1.25" Wireless Eyepiece - 07068

SKU: MEA-07068
  • Focal Length: 9 mm
  • Apparent Field of View: 50 degrees
  • Barrel Size: 1.25"
  • Eye Relief: 16 mm
$89.95

Orion Illuminated Centering Eyepiece - 08239

SKU: ORI-08239
  • Focal Length: 20 mm
  • Apparent Field of View: 70 degrees
  • Barrel Size: 1.25"
  • Eye Relief: 16 mm
$129.99

Orion Illuminated Reticle 12.5 mm 1.25" Plossl Eyepiece - 08450

SKU: ORI-08450
  • Focal Length: 12.5 mm
  • Apparent Field of View: 40 degrees
  • Barrel Size: 1.25"
  • Eye Relief: 5 mm
$79.99
Baader 25 mm Polaris II Illuminated Measuring & Guiding Eyepiece

Baader Planetarium 25 mm Polaris I Illuminated Guiding Eyepiece - POL-1

SKU: BAD-POL-1
  • Focal Length: 25 mm
  • Apparent Field of View: 40 degrees
  • Barrel Size: Bayonet/Screw Mount
  • Eye Relief: 15.5 mm
$104.00

Astronomical reticle eyepieces, like this Celestron CrossAim, typically feature a wider field of view than most other types of eyepieces as well as the distinct crosshair design. The crosshair design has been drastically improved since the old days, with the design often etched into the optics or using wire crosshairs, for intricate, precise designs.

Another feature to look out for is an astrometric reticle eyepiece. These eyepieces build on the simple crosshair shape seen in many reticle eyepieces but add additional ticks, marks, and measuring circles to measure a range of astronomical characteristics. Astrometric reticle eyepieces can be used to measure double star angular separations, position angles, planetary diameters, and lunar crater diameters, as well as many other useful astronomical measurements. These are excellent for advanced astronomers who are looking to go beyond observing celestial objects.