HD Pentax-D FA 645 35mm f/3.5 AL [IF]
This is a medium-format prime lens for Pentax 645, covering 35 mm and a maximum aperture of f/3.5. It weighs 570 g. That combination suits street and travel photography.
It 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.
- f/3.5
- Aperture
- 35mm
- Focal
- 570 g
- Weight
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Specification
- Lens type
- Wide-angle prime lens
- Max Format size
- Medium Format (645)
- Focal length
- 35 mm
- Image stabilization
- No
- Lens mount
- Pentax 645
- 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
Wide open at 2 m, background blur ≈ 0.5% of the frame width
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Video reviews
Landscape
Architecture
Interior photography