While inheriting the design concept of the Limited series, this lens was designed through a series of mechanical and numerical evaluations, as well as human assessment of test-shooting samples, to deliver an image rendition unmatched by other models. The barrel, hood and cap are all made of high-grade aluminum, meticulously machined for an attractive appearance and beautiful texture. It also features a mount pointer with a shippoyaki (cloisonné) finish, which lets the user effortlessly and quickly mount the lens to a camera body.
This lens is treated with PENTAX-original HD coating.* Compared with conventional multi-layer coatings, this high-grade coating assures higher light transmittance and lower reflectance to deliver sharp, clear images free of flare and ghost images, even under such adverse lighting conditions as backlight. It elevates the imaging performance a further step up.
* HD stands for High Definition.
This lens features a completely round-shaped diaphragm, which produces a natural, beautiful bokeh (defocus) effect in the images captured, while optimizing the imaging performance of the distinctive Limited-series optics contained within.
Applied to the front optical element, the PENTAX-developed SP (Super Protect) coating effectively repels water and grease to keep the lens surface free of dust, water and oily substances. This coating is also highly resistant to abrasion and scratches, keeping the lens scratch-free.
The black model is marked with serial numbers starting with 0000001, while the silver model starts with 1000001. The lens also features an aperture ring to make best use of the range of functions featured in K-mount film-format cameras.
31mm Equivalent to 47.5mm in 35mm format (when attached to PENTAX APS-C size DSLR cameras)
9 elements in 7 groups
Angle of View (Diagonal)
70°(when attached to PENTAX 35mm full-frame SLR cameras) 49°(when attached to PENTAX APS-C size DSLR cameras)
Minimum Focusing Distance
Number of Diaphragm Blades
9 Rounded diaphragm （31mm:F1.8-F3.5）
Maximum Diameter x Length
approx. 65mm x 69mm (approx. 2.6in. x 2.7in.)
approx. 341g (approx. 12.0oz.)
85% or less (no condensation)
Lens Cap O-LW65B, Lens Mount Cap K, Lens Case P70-140
HD Coating SP (Super Protect) Coating
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C.R. Kennedy is Australia’s leading importer and distributor of photographic equipment. Our head office and main warehouse is located in Melbourne with branch offices and warehouses in Adelaide, Brisbane, Cairns, Perth and Sydney.
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