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Pentax HD FA645 35mm F3.5AL[IF]

Product Code: 5240028G


Key Specs
  • Supports super high resolution of medium format DSLRs
  • HD coating for optimal light transmittance and minimal reflection
  • 9 blade round iris diaphragm for beautiful bokeh effect
  • Aspherical lens (AL) reduces abberation
  • Super Protection coating protects against water based or oily substances
  • Inner Focus (IF) enables more compact design
Our Verdict

Based on the smc Pentax FA 645 35mm F3.5 AL (IF), this lens incorporates the addition of the Pentax HD coating optical elements designed to effectively minimise aberrations and deliver exceptional sharp, high-contrast, high-resolution images.

The wide angle makes it ideal for scenic photography of landscape or architecture. It also boasts a minimum focus distance of 0.3 metres, making it perfect for close up photography too.

We Love
  • Beautiful bokeh effect
  • Ideal for stunning landscapes
  • Compact size makes it perfect for shooting on location
Compatible Products

Full Details


Optical design supporting super-high-resolution images of medium-format digital SLR cameras
Combining a newly designed, high-grade glass-molded aspherical element with a high refractive index low dispersion glass element and a hybrid aspherical element in its optics, this lens effectively compensates for chromatic and spherical aberrations and assures a sufficient peripheral brightness level, while enhancing image resolution and crisp image description at edges of the image field. The lens coating and reflective material used for the interior of the lens barrel are optimized for the distinctive characteristics of digital imaging. This allows it to draw out the optimum performance of PENTAX medium-format digital SLR cameras, while minimizing flare and ghost images.

Wide-angle perspective perfect for scenic photography
This lens provides a focal length of 27.5mm (in the 35mm format; when mounted on a 645Z or 645D camera body) to capture wide-angle images of landscape and architecture. With a minimum focusing distance of 0.3 meters and a maximum magnification of 0.25 times, it can also be used for close-up photography, allowing the photographer to capture subjects such as flowers from a close distance, while retaining the scenery in the background to emphasize the sense of depth. What's more, its inner-focus mechanism keeps its total length unchanged during focusing, and allows the user to maintain the ideal balance during handheld shooting.

HD Coating for high-resolution images
This lens is treated with the PENTAX-original, high-grade HD Coating.* Compared with conventional multi-layer coatings, this innovative coating assures higher light transmittance and lower reflection to deliver bright, high-contrast images free of flare and ghost images, even under demanding lighting conditions such as backlight.

* HD stands for High Definition.

Rounded diaphragm for a beautiful bokeh effect
This lens features a nine-blade, rounded diaphragm to produce a smooth, beautiful bokeh (defocus) effect, while minimizing the streaking effect of point light sources.

Other features

Image circle covering the entire image size of 645-series film-format SLR cameras
SP (Super Protect) Coating applied to the front surface of the lens to effectively repel water and grease
Attachment of various filters, such as a C-PL (circular polarizing) filter, to the front end of the lens
PL filter window for easy control of a polarizing filter without requiring the removal of the lens hood

Pentax HD FA645 35mm F3.5AL[IF] Specifications

Focal length 35mm
Equivalent to 35mm format 27.5mm (with 645D/Z) 21.5mm (with film 645)
Maximum aperture f3.5
Minimum aperture f32
Number of Diaphragm Blades 9
Angle of View 76° (with 645D/Z) 90° (With film 645)
Construction 10 elements in 7 groups
Smallest object distance 0.3m
Magnification 0.25x
Filter size 82mm
Mount 645AF
Weight Approx 570g (610g with hood)
Dimensions (Length x Diameter) Length 88mm x Diameter 90mm 

Pentax HD FA645 35mm F3.5AL[IF] Reviews


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