Key Features:

26-78x with 100mm Scope
21-63x/20-60x/20-61x with 80mm Scopes
16-46x/16-48x with 65mm Scopes
For Any Scope Using 1.25" Eyepieces
Waterproof & Fogproof
Wide Angle
20-60x Magnification
18-22mm Eye Relief
38-60° Apparent Angle of View

Constructed with high-refraction, low-dispersion, multi-coated lanthanum glass optics, the SMC 8-24mm Zoom Eyepiece fits all Pentax spotting scopes for terrestrial viewing, and can also be used with telescopes with 1.25" 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" eyepiece threading diameter
Waterproof & fogproof (JIS Class 4-rated)
Multi-layer coated optics
High-refraction, low dispersion lanthanum glass
Accepts conventional 1.25" diameter filters for astronomical and terrestrial applications

Technical Specifications:

Magnification	With PF-100ED Scopes: 26 to 78x With PF-80EDA Scopes: 21 to 63x With PF-80ED Scopes: 20 to 60x With PR-80EDA Scopes: 20 to 61x With PR-65EDA Scopes: 16 to 46x With PF-65ED(A)II Scopes: 16 to 48x
Angle of View	With PF-100ED Scopes: 1.5 to 0.8° (Actual) With PF-80EDA Scopes: 1.8 to 0.9° (Actual) With PF-80ED Scopes: 1.9 to 1° (Actual) With PR-80EDA Scopes: 1.9 to 1° (Actual) With PR-65EDA Scopes: 2.4 to 1.3° (Actual) With PF-65ED(A)II Scopes: 2.4 to 1.2° (Actual) 38 to 60° (Apparent)
Field of View	With PF-100ED Scopes: 78 to 42' @ 1000 yd / 26 to 14 m @ 1000 m With PF-80EDA Scopes: 93 to 49' @ 1000 yd / 31 to 16.5 m @ 1000 m With PF-80ED Scopes: 99 to 51' @ 1000 yd / 33 to 17 m @ 1000 m With PR-80EDA Scopes: 99 to 54' @ 1000 yd / 33 to 18 m @ 1000 m With PR-65EDA, PF-65ED(AII Scopes: 120 to 63' @ 1000 yd / 40 to 21 m @ 1000 m
Exit Pupil Diameter	With PF-100ED Scopes: 3.9 to 1.3 mm With PF-80EDA Scopes: 3.8 to 1.3 mm With PF-80ED Scopes: 4 to 1.3 mm With PR-80EDA Scopes: 4 to 1.3 mm With PR-65EDA Scopes: 4.1 to 1.4 mm With PF-65ED(A)II Scopes: 4 to 1.4 mm
Eye Relief	18.0 to 22.0 mm
Dimensions	ø: 2.7 x L: 5.7" / ø: 69 x L: 144 mm
Weight	1.2 lb / 550 g

In the Box:

Pentax SMC 8-24mm Zoom Eyepiece (1.25")
Limited 1-Year Warranty

Pentax SMC 8-24mm Zoom Eyepiece (1.25")