Orion 5mm Edge-On Planetary Eyepiece1.25 Inch
- High-magnification 5mm focal length 1.25" eyepiece designed for exceptional planetary and lunar viewing through any telescope
- Flat field eyepiece design ensures sharp focus out to the edge of its wide 55-degree apparent field of view
- Barrel distortion and field curvature commonly seen in standard eyepiece designs are not seen in Orion Edge-On eyepieces
- Features a long 20mm eye relief for comfortable with or without eyeglasses
Orion Edge-On Planetary eyepieces bring flat-field performance to solar system viewing in the form of six medium and high-magnification focal lengths. Each eyepiece employs a sophisticated 7-element lens design reminiscent of exotic, high-priced oculars. This design renders an optically flat image that's sharply focused from center to edge of the wide 55-degree apparent field of view. The barrel distortion and field curvature aberrations common in standard eyepiece designs are virtually gone.
Orion Edge-On Planetary eyepieces let you push the power, whether you're canvassing the lunar terminator or studying the Jovian cloud belts. The optics are fully multi-coated for high light transmission, and each eyepiece has 20mm eye relief for viewing comfort. Other nice touches: blackened lens edges, pop-down rubber eyeguards, and 1.25" barrels threaded for filters.
| Specifications | Design
Proprietary
Eyepiece focal length
5.0mm
Barrel size
1.25"
Apparent field of view
55.0°
Eye relief
20.0mm
Coatings
Fully multi-coated
Number of elements
7
Filter threads
Yes
Parfocal
Yes
Field stop diameter
8.7mm
Barrel security recess
No
Blackened lens edges
Yes
Rubber eyeguards
Yes
Body material
Aluminum
Case
No
Weight (oz.)
8
Dimensions
4.5 in. x 1.7 in.
Warranty
One year
|
|---|