Irix 11mm f/4.0 Blackstone Pentax

Overzicht

The Irix 11mm f/4 Blackstone is an ultra-wide prime lens designed for Pentax K-mount DSLRs and full-frame format. Its rectilinear optical design uses aspherical, extra-low dispersion and high-refractive index elements.

The lens features a Neutrino coating, manual focus with focus lock, and a weather-sealed magnesium alloy housing. UV fluorescent engraved markings and depth-of-field and focus-distance scales support manual operation.

Features

• Three aspherical elements
• Two ED and four HR elements
• Neutrino coating for controlling flare and ghosting
• UV fluorescent engraved markings
• Depth-of-field and focus-distance scales
• Rounded nine-blade diaphragm

Included

• IRIX 11mm f/4 Blackstone Lens for Pentax K
• Front Lens Cap
• 2 x IRIX Rear Cap for Pentax K-Mount Lenses
• IRIX Hard Lens Case (Black)

Specifications