HD Pentax-D FA 645 35mm f/3.5 AL [IF]

HD Pentax-D FA 645 35mm f/3.5 AL [IF]

Professional wide-angle prime with advanced optics for Landscape, architecture, interior photography.

Wide-angle prime lens f/3.5
Landscape
Landscape
Architecture
Architecture

Lens Review: HD Pentax-D FA 645 35mm f/3.5 AL [IF]

The HD Pentax-D FA 645 35mm f/3.5 AL [IF] is a wide-angle prime lens designed for Pentax 645 medium format cameras. Offering a 27.5mm equivalent focal length in 35mm format, it provides an expansive field of view ideal for capturing landscapes, architectural details, and interior scenes. The lens features an advanced optical design that includes high refractive index and hybrid aspherical elements to minimize aberrations and deliver sharp, high-contrast images across the frame. Pentax's HD (High Definition) multi-layer coating reduces flare and ghosting, ensuring optimal image quality even in challenging lighting conditions. The lens's internal focusing (IF) mechanism allows for smooth and quick autofocus performance without changing the lens's length, maintaining balance during shooting. Its robust construction and high-quality optics make it a valuable tool for photographers seeking exceptional image quality in wide-angle applications.

Specifications

Lens type
Wide-angle prime lens
Max Format size
Medium Format (645)
Focal length
35 mm
Image stabilization
No
Lens mount
Pentax 645AF2
Maximum aperture
f/3.5
Minimum aperture
f/32
Aperture ring
Yes
Number of diaphragm blades
9 (rounded)
Optical construction
10 elements in 7 groups (including high refractive index and hybrid aspherical elements)
Minimum focusing distance
0.3 m (11.8 inches)
Maximum magnification
0.25x
Filter size
82 mm
Dimensions
88 mm (diameter) x 90 mm (length)
Weight
570 g (20.1 oz)
Weather sealing
No
Usage
Landscape, architecture, interior photography