A useful and popular focal length that will quickly become one of your favourites. 

Features

• High-refraction, low-dispersion Lanthanum glass.
• Pentax Super Multi-Coatings (SMC) on all air/glass surfaces.
• Edge-blackened optics and optimised baffles minimise internal reflections.
• Optically corrected for use with focal ratios as fast as f/4.
• 20mm eye-relief and twist-up rubber-rimmed eyecups - perfect for spectacle wearers.
• Chromed barrels threaded to accept filters.
• Weatherproof to JIS Class 4 standards.

Lens Structure: 7 elements, 6 groups

Focal Length: 10mm

Apparent Field of View: 70 degrees

Eye Relief: 20mm

Attachment Diameter: 1.25" (31.7mm)

Filter Diameter: 28.6mm

Field Stop Diameter: 12.4mm

Eyepiece Ring: Helicoid type

Height & Width: 4.3" x 2.4"

Weight: 13.8 oz. (390g)

Eyepiece Field of View Simulator

There are currently no specifications available for this product.

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