This standard lens has a 43mm focal length, which is equal to the diagonal length of a 35mm-film image area. Its unique focal length captures the image as if seen by the human eye, and produces a natural sense of depth as observed by the naked eye.
Compared with conventional 50mm standard lenses — popular during the golden days of film photography — this 43mm lens provides a slightly broader field of view to more effectively capture modern subjects such as high-rise buildings, wide streets and fashionable cityscapes.
To make the most of the slender lens barrel, this is the only model in the Limited lens series to feature a detachable, screw-in lens hood. Its compact dimensions assure outstanding portability.
In addition to the acclaimed optical performance of the smc PENTAX-FA 43mmF1.9 Limited, this new lens features the PENTAX-original HD coating and a round-shaped diaphragm to further upgrade its imaging power. It also provides a mount pointer with a shippoyaki (cloisonné) finish to standardize the exterior design of the new-generation HD FA Limited series, and also to facilitate the lens-mounting operation.
To optimize “sensibility” — one of the main design concepts of the Limited series — PENTAX paid the utmost attention even to the details that can’t simply be measured in numerical terms, to improve the imaging power of this new lens. Newly applied to the first optical element, the SP coating improves the water/grease-repellent and scratch-resistant performance, while enhancing ease of maintenance.
To make the most of its slender lens barrel, this lens is the only model in the Limited series to feature a screw-in lens hood. Thanks to its extremely compact dimensions, it assures outstanding portability. A newly added mount pointer lets the user effortlessly and quickly mount the lens to a camera body, while accentuating the exclusive exterior appearance of the HD FA Limited series
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.
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.
Every lens barrel and all exterior components of the PENTAX Limited-series lenses are meticulously machined from high-grade aluminum material to optimize the high-quality visual design and the feel when the photographer touches them. Their elegant shape and distinctive appearance are still loved by many camera enthusiasts today, even as the format of most camera bodies has shifted from analogue to digital.
The lens hood eliminates the need for a reversal of position when the lens is stored, and also lets you start photographing immediately simply by removing the cap from the front end of the lens.
Each lens hood is shaped differently to optimize the optical performance of the individual lens. Electrostatic flocking has been applied to the inside of the lens hood to minimize internal reflection, and also to attract dust particles and prevent them from sticking to the front surface of the lens.
Under today’s standards, large-aperture lenses are expected to be so heavy and bulky because designers try to optimize resolving power and contrast while minimizing various aberrations.
With FA Limited-series lenses, however, PENTAX has succeeded in achieving these two contradicting goals simultaneously, by making them compact and easy-to-handle through effective control of aberrations, while optimizing the sense of depth and sharpness in resulting images.
Because these lenses deliver image descriptions that truthfully convey the ambience of the image, and also provide the flexibility to change the visual expression with different aperture settings, they are still greatly appreciated by many photographers as truly special lenses.
New-generation HD FA Limited-series lenses are treated with the PENTAX-original HD (High Definition) coating to deliver sharp, clear images, even under varying lighting conditions including backlight. They also feature a round-shaped diaphragm to produce a natural, beautiful bokeh (defocus) effect from open aperture to F3.5 or F4.* These new features combine to further upgrade the imaging power of the three new lenses.
The PENTAX-developed SP (Super Protect) coating has also been applied to the front optical element of these lenses to improve their water/grease-repellent and scratch-resistant performance for easier maintenance.
* The HD PENTAX-FA 31mmF1.8 Limited and HD PENTAX-FA 43mmF1.9 Limited provide a round-shaped diaphragm from open aperture to F3.5, while the HD PENTAX-FA 77mmF1.8 Limited provides this from open aperture to F4.
Equivalent to 66mm in 35mm format
(when attached to PENTAX APS-C size DSLR cameras)
|Lens Construction||7 elements in 6 groups|
|Angle of View (Diagonal)||53°(when attached to PENTAX 35mm full-frame SLR cameras)
36.5°(when attached to PENTAX APS-C size DSLR cameras)
|Minimum Focusing Distance||0.45m (1.48 ft.)|
|Diaphragm Control||Fully automatic|
|Number of Diaphragm Blades||8
Rounded diaphragm （43mm:F1.9-F3.5）
|Lens Hood||MH-RG49 (included)|
|Lens Cap||O-LW54A (included)|
|Lens Case||P60-120 (included)|
|Maximum Diameter x Length||approx. 64mm x 27mm (approx. 2.5in. x 1.1in.)|
|Weight||approx. 155g / with hood approx. 163g
(approx. 5.5oz./ with hood approx. 5.7oz.)
|Humidity||85% or less (no condensation)|
|Included Accessories||Lens Hood MH-RG49, Lens Cap O-LW54A, Lens Mount Cap K, Lens Case P60-120|
SP (Super Protect) Coating
Whats in the box?
HD PENTAX-FA 43mmF1.9 Limited Lens - Black
Lens Hood MH-RG49
Lens Cap O-LW54A
Lens Mount Cap K
Lens Case P60-120
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