Details
The compact PENTAX XF series is ideal for planetary observations as well as general outdoor viewing. Each eyepiece provides a
60-degree field of view and also features smc full-surface multi-layer lens coating for improved light transmission and
high-refraction, low-dispersion glass elements for high-resolution images with minimal aberrations. These eyepieces may also be
used with PENTAX PF-65ED and 65ED-A spotting scopes.
With a focal length of 8.5mm, the high-performance PENTAX XF 8.5 eyepiece is ideal for outdoor viewing and bird watching. As a
standard unifocal eyepiece it offers a 60 degree apparent field of view, long eye relief, and bright, high-contrast images.
Lens Structure: 6 elements, 4 groups
Magnification: 46X
Real Field of View: 1.3 degrees
Apparent Field of View: 60 degrees
Field of View at 1000m: 22m
Field of View at 1000 Yards: 66 ft.
Angle of View: 1.3
Exit Pupil: 1.4mm
Eye Relief: 18mm
Field Stop Diameter: 8.8mm
Relative Brightness: 1.9
Height & Width: 3.3" x 1.7"
Weight: 5.3 oz. (150g)
Product Series
The compact PENTAX XF series is ideal for planetary observations as well as general outdoor viewing. Each eyepiece provides a 60-degree field of view and also features smc full-surface multi-layer lens coating for improved light transmission and high-refraction, low-dispersion glass elements for high-resolution images with minimal aberrations. These eyepieces may also be used with PENTAX PF-65ED and 65ED-A spotting scopes.
Additional Information
| Model | 70531 |
|---|---|
| Weight | 1.0000 |
| Eyepiece Apparent FOV | 60 |
| Eyepiece Apparent FOV2 | 0 |
| Eyepiece Barrel Size | 1.25" |
| Eyepiece Eye Relief | 18 |
| Eyepiece Eye Relief 2 | 0 |
| Eyepiece Field Stop | 8.8 |
| Eyepiece Focal Length | 8.5 |
| Eyepiece Focal Length2 | 0.0 |
| Eyepiece Elements | 6 |
