Pentax SMC 8-24mm Zoom Fogproof Wide Angle Eyepiece for Spotting Scope 70509
The SMC 8-24mm Zoom Eyepiece fits all Pentax spotting scopes for terrestrial viewing, and can also be used with telescopes with 1.25 Inch focusers. It offers generous 18-22mm eye relief for comfortable viewing and an apparent angle of view as wide as 60°. Built to Japanese Industrial Standards Class 4, it is weather resistant.
Compatibility:
Pentax PF-100ED, PF-80EDA, PF-80ED, PR-80EDA, PR-65EDA, PF-65ED(A)II spotting scopes
Optical Performance:
- Apparent angle of view 38-60°
- Long 18/22mm eye relief accommodates eyewear
- Magnification: 26-78x with 100mm scope, 21-63x/20-60x/20-61x with 80mm scopes, 16-46x/16-48x with 65mm scopes
Construction Details:
- USA Standard 1.25 Inch eyepiece threading diameter
- Waterproof & fogproof (JIS Class 4-rated)
- Multi-layer coated optics
- High-refraction, low dispersion lanthanum glass
- Accepts conventional 1.25 Inch diameter filters for astronomical and terrestrial applications
Zoom Eyepiece which is a high-performance and waterproof structure for daily life.
Specifications:
- Magnification:
With PF-100ED: 26-78x
With PF-80EDA: 21-63x
With PF-80ED: 20-60x
With PR-80EDA: 20-61x
With PR-65EDA: 16-46x
With PF-65ED(A)II: 16-48x
- Apparent Angle of View: 38-60°
- Field of View:
With PF-100ED: 26-14 m at 1000 m
With PF-80EDA: 31-16.5 m at 1000 m
With PF-80ED: 33-17 m at 1000 m
With PR-80EDA: 33-18 m @ 1000 m
With PR-65EDA and PF-65ED(A)II: 40-21 m at 1000 m
- Angle of View:
With PF-100ED: 1.5-0.8°
With PF-80EDA: 1.8-0.95°
With PF-80ED: 1.9-1.0°
With PR-80EDA: 1.9-1.0°
With PR-65EDA: 2.4-1.3°
With PF-65ED(A)II: 2.4-1.25°
- Exit Pupil Diameter:
With PF-100ED: 3.9-1.3 mm
With PF-80EDA: 3.8-1.3 mm
With PF-80ED: 4.0-1.3 mm
With PR-80EDA: 4.0-1.3 mm
With PR-65EDA: 4.1-1.4 mm
With PF-65ED(A)II: 4.0-1.4 mm
- Eye Relief: 18-22 mm
- Dimensions: 69 x 144 mm
- Weight: 550g