Pentax Eyepiece (1.25")
- Price: $199.95
- This is a used item
- Condition: 9+ Shows little or no signs of wear
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- In Stock
Pentax's 80mm & 100mm series of premium spotting scopes adhere to the American standard of 1.25" eyepiece thread diameter, facilitating the use of independently-manufactured telescope eyepieces.
All of the Pentax eyepieces exhibit an apparent field of view of greater than 50°, which is the generally agreed-upon maximum viewing field that an observer has in their non-peripheral vision. You'll feel like you are surrounded in space with a distortion-free portal to distant scenes at your disposal.
- USA Standard of 1.25" telescope eyepiece threading diameter
- All Pentax eyepieces are waterproof & fogproof with minimum eye relief of 18mm
| Angle of View |
0.8° with 80mm scopes 0.7° with 100mm scopes |
| Exit Pupil Diameter |
1.1mm with 80mm scopes 1.1mm with 100mm scopes |
| Eye Relief | 20mm |
| Relative Brightness |
1.2 with 80mm scopes 1.2 with 100mm scopes |
| Twilight Factor |
76.9 with 80mm scopes 94.9 with 100mm scopes |
| Weatherproofing | Waterproof & fogproof |
| Dimensions | 5 x 2.4" |
| Weight | 15.3 oz |
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