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Ricoh Imaging announces HD PENTAX-D FA* 50mm F1.4 SDM AW

Ricoh Imaging has announced the HD PENTAX-D FA* 50mm F1.4 SDM AW lens.

The first of a new generation of Star-series optics, the new prime lens will go on sale from July, with an RRP of £1,199.99 in the UK and $1,199.95 in the US.

Designed for use with the full-frame K-1 and K-1 Mark II DSLRs, the lens is said to deliver greatly improved resolving power, and "looks ahead to its use with more advanced, next-generation camera bodies," according to the press announcement, and adds to the list of full frame Pentax lenses.

The lens has an Aero Bright Coating II, a lens-coating nanotechnology employing a super-low refractive film fabrication process. By coupling this advanced lens coating with the high-grade, multi-layer HD Coating, the company claims reduction in average reflection in the visible ray spectrum to less than 50% of conventional multi-layer coatings. 

The lens also incorporates three super-low dispersion glass elements and one aspherical element.

Internal construction of the HD PENTAX-D FA* 50mm F1.4 SDM AW

Internal construction of the HD PENTAX-D FA* 50mm F1.4 SDM AW

With a minimum focusing distance of 0.4m, the new lens has a dust-proof, weather-resistant construction. It features a newly developed ring-type SDM (Supersonic Direct-drive Motor), which Ricoh Imaging claims generates as much as 7.5 times the torque of the conventional SDM installed in existing lenses. 

It also features a nine-blade, rounded diaphragm which promises natural, beautiful bokeh. The lens weighs 910g without its lens hood and measures 80x106mm.

Read more: 

Pentax K-1 Mark II review
• The best Pentax lenses to buy right now

Chris George

Chris George has worked on Digital Camera World since its launch in 2017. He has been writing about photography, mobile phones, video making and technology for over 30 years – and has edited numerous magazines including PhotoPlus, N-Photo, Digital Camera, Video Camera, and Professional Photography. 

His first serious camera was the iconic Olympus OM10, which he won the title of Young Photographer of the Year - long before the advent of autofocus and memory cards. Today he uses a Nikon D800, a Fujifilm X-T1, a Sony A7, and his iPhone 8 Plus RED.