Pentax 35mm F3.5 AL [IF] HD FA 645 Lens

The lens design is based on the smc PENTAX-FA 645 35mm F3.5AL[IF], renowned for its crisp image description. Thanks to the incorporation of a newly designed high-grade aspherical optical elements, it has been optimized for digital imaging by minimizing various aberrations.

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Pentax 35mm F3.5AL[IF] HD FA 645 Lens

The lens design is based on the smc PENTAX-FA 645 35mm F3.5AL[IF], renowned for its crisp image description. Thanks to the incorporation of a newly designed high-grade aspherical optical elements, it has been optimized for digital imaging by minimizing various aberrations. It is also treated with the PENTAX-original HD Coating to deliver high-contrast, high-resolution images even under demanding lighting conditions such as backlight, making it ideal for scenic photography.

 Product Features 

  • 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.
  • 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


  •  Optics 
    Focal Length: 35mm
    (Equivalent in 35mm format ):
    27.5mm (with 645D/Z body)

    21.5mm (with film 645 body)
    Maximum Aperture: F3.5
    Minimum Aperture: F32
    Lens Construction: 10 elements in 7 groups
    Angle of View:
    76° (with 645D/Z body)90° (with film 645 body)
    Lens Mount: 645AF

    Minimum Focusing Distance: 0.3m (1.0 ft)
    Maximum Magnification: 0.25x
    Filter Diameter: 82mm
    Diaphragm control: Fully Automatic
    Number of Diaphragm Blades: 9/Rounded aperture (F3.5-7.1) Lens Hood: PH-RBE82
    Lens Cap: O-LC82
    Lens Case: S120-150
    Maximum Diameter x Length: Approx. 88mm x 90mm (3.5 inch x 3.5 inch)
    Weight: Approx. 570g / 20.1 oz. (with hood Approx. 610g / 21.5 oz.)

Pentax 35mm F3.5 AL [IF] HD FA 645 Lens reviews verified by reevoo
Verified reviews of Pentax 35mm F3.5 AL [IF] HD FA 645 Lens

out of 10

3 reviews

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Overall rating
Scores 9.7 out of 10 based on 3 reviews
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out of 10


What a great lens, super sharp and wide enough to add excellent impact without the pin cushion effect. Quite close focus too is a major plus point
The opposite thread from my old canon system still catches me out and a touch faster would have been great
Confirmed purchase: 09 June 2016
Published on: 19 June 2016
out of 10


Newbury GB Medium format shooter
Up to date digital design that provides really excellent optical performance.
Where's the weather sealing?????
Confirmed purchase: 26 February 2016
Published on: 11 March 2016
out of 10


Guernsey GB
Sharper then the previous 2 versions
Reviewer left no comment
Confirmed purchase: 21 December 2015
Published on: 13 January 2016

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