PENTAX XW 16.5 mm 85° 2" eyepiece

PENTAX XW 16.5 mm 85° 2" eyepiece

NEW premium medium magnification eyepiece with an impressive 85° FOV. 

This new eyepiece from Pentax features an optical system with seven elements in five groups that surpasses their highly regarded XW series to deliver sharp star images right to the edge of the field of view.

The high-performance optics include lanthanum glass elements with high refractive power and particularly low dispersion, which produces a balanced image with minimal aberrations. It is specially good at reducing the annoying 'blackout' effect by effectively compensating for spherical aberration of the pupil.

Pentax original multi-coating for outstanding light transmission

All air-to-glass surfaces are treated with Pentax SMC multi-coating, while all laminated surfaces have an innovative partial coating to achieve light transmission of more than 90 percent (an astonishing 96 percent at 550nm) across the visible light spectrum.

Advanced light-shielding technology for improved image contrast

Thanks to Pentax's advanced computer simulation technology, the XW series feature a light-shielding diaphragm in the most effective position to dramatically reduce internal reflections and provide a brighter, higher contrast image.

Weatherproof construction for all-weather viewing

The XW Series features JIS Class 4 equivalent weatherproof construction that enables use even in drizzle or night time dew.