Machined aluminium lens barrel to optimize the texture of the material

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.

Exclusively designed lens hoods and slip-on caps to match the character of individual lenses

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.

A large aperture and a compact, lightweight design

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.

HD Coating

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.