HD PENTAX-FA 50mm F1.4

€399,99

A standard lens, featuring the latest, high-grade, multi-layer HD Coating to deliver clear, high-contrast images

Distinctive image rendition
HD Coating to enhance imaging performance
Compatibility with older cameras
New exterior design

Lens Type

Single Focus - Standard Lens

Compatible Sensor Size

35 mm Full Frame + APS-C

Focal Length

50mm
Angle of View

31,5°

Mount

K-AF

Lens construction

7 elements / 6 groups

Lens glossary - knowing more about Pentax lenses

PENTAX lenses are an important part of the image quality. There are a lot of festures influencing the useabilty and t...

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HD PENTAX-FA 50mm F1.4 with High Definition - high performance coating for high contrast and sharp images.

This lens is based on the smc PENTAX-FA 50mmF1.4, which was introduced in 1991 as the standard lens for 35mm SLR cameras.
Due to its large aperture and distinctive image reproduction, which is different from today's lenses for digital cameras, it has become increasingly popular, especially in recent years.
The popularity of this lens, which is one of the best-selling Pentax lenses, prompted us to redesign it. On the one hand, we wanted to preserve the special image reproduction of the classic, on the other hand, we wanted to produce a modern lens that meets the current demands of photography. The result is two lenses, and depending on the photographer's task or creative orientation, he can decide which lens to choose.

The HD PENTAX-FA 50mmF1.4 is equipped with the latest, high-quality, multi-layer HD coating that ensures sharp, high-contrast images right to the edges. And although it has the same focal length and open aperture as the smc PENTAX-FA 50mmF1.4 Classic, the two lenses differ significantly.

Distinctive image rendition

Thanks to its large F1.4 open aperture, this lens captures images with a very shallow depth of field. Its eight-blade diaphragm control mechanism produces a soft, natural bokeh (defocus) effect from open aperture to F2.8, and also minimizes the streaking effect of point light sources.

HD Coating to enhance imaging performance

The lens incorporates the PENTAX-developed, multi-layer HD (High Definition) Coating. Compared with conventional multi-layer coatings, it improves light transmittance while reducing average reflectance in the visible ray spectrum. This means that it can deliver clear, well-defined images with minimal flare and ghost images, even under demanding lighting conditions such as backlighting.

New exterior design

While retaining the dimensions of its base model — the smc PENTAX-FA50mm F1.4 — this lens features a totally new exterior design, similar to that of the latest DA and D FA series lenses. This makes it a perfect match for K-series digital SLR cameras.

Compatibility with older cameras

Thanks to the aperture ring installed on the lens body, and the coupling mechanism with the camera’s motor-driven, in-body AF system, this lens is designed to be fully compatible with older K-mount digital SLR cameras and film-format AF SLR cameras, allowing the photographer to retain all camera functions of these models.

SP Coating

SP coating is a PENTAX-original special coating that provides superior performance in repelling water and oils. It is used on the front surface of the first high-performance lens for effective protection of the lens surface. This coating not only prevents adhesion of dust, water drops, oils, and other substances, but it also makes it easy to wipe off objects that adhere to the lens.

【MTF Chart】

*Geometric optics MTF
(MTF calculated without referencing the effects of light diffraction phenomenon)
**Wave optical MTF (MTF calculated referencing the effects of light diffraction phenomenon)

MTF chart information

MTF (Modulation Transfer Function) is a kind of index used to evaluate lens performance, which represents the extent of subject contrast reproduction as spatial frequency.
The MTF chart here shows the contrast on the vertical axis, and distance from the center of the image on the horizontal axis. For the spatial frequency, 10 lines/mm shows a low frequency, and 30 lines/mm shows a high frequency, resulting in the MTF graph. On the graph, the solid line represents the S direction (sagittal direction and radiation direction) MTF, and the broken line represents the M direction (meridional direction and concentric circular direction) MTF.
In general, a low-frequency MTF is proof of a clear, high-contrast lens, and a high-frequency MTF is proof of a sharp lens with high resolving power.

PENTAX K Mount

The lens mounts for PENTAX interchangeable lenses are based on the bayonet K mount, which has remained unchanged since its inception in 1975. It is a mount unique to PENTAX that features a large aperture combined with superior ease of replacement, accuracy, and toughness. These features are utilized to comfortably incorporate an iris control mechanism, autofocus mechanism, and other functions for enabling nearly complete compatibility with conventional lenses. The PENTAX K Mount keeps its advanced versatility despite differences in camera and lens functions.

In addition, this lens is equipped with an aperture ring, which means that it can also be used on older cameras without electronic aperture control without any restrictions.

Pentax photographers from all over the world share their pictures on Instagram using the official hashtag

Find more images taken with the smc Pentax FA 50mm F1. 4.

#pentax_fa5014_hd

Captured by PENTAX K-1 Mark II

Lens Type: Single Focus - Standard Lens
Compatible Sensor Size: 35 mm Full Frame / APS-C
Focal Lenght:: 50mm (when attached to PENTAX 35mm full-frame SLR cameras) / 76,5mm (Equivalent in 35mm format when attached to PENTAX APS-C size DSLR cameras)
Angle of View: 31,5° when attached to PENTAX 35mm full-frame SLR cameras) / 47° (when attached to PENTAX APS-C size DSLR cameras)
Mount: K-AF (compatible with all PENTAX cameras with K-Mount)
Maximum aperture: F1.4
Minimum aperture: F22
Diaphragm Control: Fully automatic manual aperture setting possible
Aperture Ring: available
Lens construction: 7 elements / 6 groups
No. of diaphragm blades: 8
Minimum focusing distance: 0.45m (0.98ft.)
Maximum reproduction ratio: 0.15x
Filter size: 49mm
Usage environment: Temperature: -10°C～40°C (14°F～104°F) / Humidity: 85% or less (no condensation)
Weather Protection: there is no dedicated weather protection
Special Features: SP Coating / Quick-shift Focus System (QFS/M)
Diameter x length: Approx. 65mm x 37mm (approx. 2.6in. x 1.5in.)
Weight: Approx. 216 g (approx. 7.6oz.)
Included Accessories: Lens Cap O-LC49 - #31526 / Lens Mount Cap K - # 31006
Compatible converters: HD Pentax-DA AF REAR CONVERTER 1,4AW REAR CONVERTER A1.4X-S REAR CONVERTER A2X-S
Art. No.: 20790 (Black)
Market Launch: June 2023