LAOWA 12mm f/2.8 ZERO-D Lens for Pentax K

Laowa 12mm F2.8 Zero-D Lens (PENTAX). Ultra wide angle, manual focus lens with close to zero distortion. Superior optics provide crystal sharp images. Full frame compatible lens featuring 16 elements in 10 groups with a 7 blade aperture* and a minimum focus distance of just 18cms. All metal alloy construction housing multi-coated glass elements throughout. At a focal length of 12mm this lens is perfect for a wide range of subjects from astro photography to landscapes to architecture. Suitable for various mounts including Pentax K. Accepts filters with additional filter adapter.

A truly wide-angle prime featuring a rectilinear optical design, the black Pentax K-mount Laowa 12mm f/2.8 Zero-D from Venus Optics is specifically meant to limit distortion for clear and accurate portrayals of landscapes and architectural subjects. The optical construction also incorporates a pair of spherical elements and three extra-low dispersion elements to control both spherical and chromatic aberrations for improved sharpness and reduced colour fringing. A Frog Eye Coating has been applied, too, to repel dust and moisture from the front element of the lens to benefit working in trying environmental conditions. Benefiting the optical attributes, this lens also features a precise manual focus design along with a floating optical system to maintain accurate rendering throughout the focus range, from 7.09 inch to infinity. Additionally, a petal-shaped lens hood is also incorporated into the lens' design to reduce flare and ghosting when working in strong lighting conditions.

Ultra wide-angle prime designed for full-frame Pentax K-mount DSLRs, this 12mm f/2.8 can also be used with APS-C models where it provides an 18mm equivalent focal length.
Bright f/2.8 maximum aperture is well-suited to working in low and difficult lighting conditions.
Rectilinear design renders subjects with minimal distortion in order to suit landscape and architectural applications.
Three extra-low dispersion elements reduce chromatic aberrations and colour fringing for increased clarity and colour neutrality. Two spherical elements are also featured to limit spherical aberrations for improved sharpness.
A Frog Eye Coating has been applied to repel both dust and moisture for added protection when working in inclement conditions.
Manual focus design employs a floating optical system to maintain performance throughout the focusing range of 7.09 inch to infinity.
Built-in petal-shaped lens hood shields the lens from stray light to reduce flare and ghosting and also protects the front elements from accidental impacts.