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

Pentax premium spotting scopes adhere to the American standard of 1.25" eyepiece thread diameter, facilitating the use of eyepieces from independent manufacturers. That also means, of course, that the wonderful Pentax eyepieces can be used in other telescopes and spotting scopes which accept 1.25" 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.

·         Waterproof & fogproof with minimum eye relief of 18mm

·         USA Standard 1.25" eyepiece threading diameter

·         Accepts conventional 1.25" diameter filters for astronomical and terrestrial applications

 

Specs

Magnification	21-63x with the PF-80ED 22-65x with the PF-80ED-A 26-78x with the PF-100ED
Angle of View	1.8-1.0° with 80mm scopes 1.5-0.8° with the PF-100ED
Field-of-View (@ 1000 Yds)	93-49' (31-17 m at 1000 m) with 80mm scopes 78-42' (26-14 m at 1000 m) with the PF-100ED
Exit Pupil Diameter	3.8-1.3mm with 80mm scopes 3.8-1.3mm with the PF-100ED
Eye Relief	18-22mm
Relative Brightness	14.5-1.6 with 80mm scopes 14.8-1.6 with the PF-100ED
Twilight Factor	41.0-71.0 with 80mm scopes 51.0-88.3 with the PF-100ED
Weatherproofing	Waterproof & fogproof
Dimensions	2.7 x 5.7" (69 x 144 mm) WxH
Weight	1.21 lb (550 g)