Luminos 31 mm eyepiece

Luminos 31 mm eyepiece

82 degree inherent field of view - Large field of view at high and low magnifications
Adjustable eyecups - Ultra-flat design for eyeglass wearers
Parfocal eyepieces - Little or no refocusing is required when switching between different magnifications
Filter thread - For 2" filters
Polished and anodized aluminum sleeve - Scratch resistant
Rubber ring - For secure grip and comfortable eyecup adjustment
Celestron's Luminos series wide-angle eyepieces offer a comfortable 82 degree field of view. While with simpler eyepieces the field of view is sometimes limited to 55 degrees or even less, the edge of the image is barely visible with the Luminos eyepieces. This not only makes for a more pleasant image - at the same magnification, a much larger section of the sky can be seen! This makes orientation in the sky much easier. In addition, many deep sky objects like galaxies, nebulae or star clusters appear more beautiful if their surroundings can be seen in which they are embedded. The graph below shows the different field of view of a simple Plössl eyepiece and a Luminos wide-angle eyepiece on the moon at the same magnification or focal length. The inner circle corresponds to the field of view of an eyepiece with 50 degrees field of view, the outer circle to that of a Luminos eyepiece with 82 degrees.

All eyepieces of the Luminos series are parfocal. This means that there is little or no need to refocus when the eyepiece is changed. Especially on telescopes, this saves valuable time during which the observation object could otherwise wander out of the image.

With 20mm eye relief, the eyepieces are also suitable for eyeglass wearers. The eyecup can be adjusted by turning the rubber arming and thus cannot get lost.




Manufacturer Celestron
Item number (#) 810253
EAN Code 4047825028099
Net weight (kg) 1.60
Technical Specifications
Focal length 31 mm (1.22 in)
Field of view 82
Interpupillary distance (mm) 27 mm (1.06 in)
Coating Fully Multi Coated
Mating dimension (inch) 2"
Eyepiece Features
Field diaphragm diameter 47 mm (1.85 in)
Number of lens elements 6
Connectors
Filter thread Yes