Ricoh has launched the HD Pentax DA 55-300mm f/4-5.8 ED WR, a telephoto zoom that's weathersealed to complement the company's recent SLRs. It also gains Pentax's latest 'High Definition' coating to minimize flare and ghosting. Aside from that, the specifications are practically identical to the existing smc DA 55-300mm f/4-5.8 ED. It'll be on sale in November 2013 for a suggested retail price of $449.95 / £399.99.

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Press Release:

Ricoh Imaging Adds New Lens to its Industry-Leading APS-C Optimized Lens Lineup

HD PENTAX-DA 55-300 mm F4-5.8 ED WR Marks 28th APS-C Optimized Lens for Ricoh Imaging’s Robust APS-C Camera Offering

DENVER, CO, October 7, 2013 – Ricoh Imaging Americas Corporation (Ricoh Imaging) today announced the introduction of a new HD PENTAX-DA lens. Specifically designed for PENTAX K-mount DSLRs, the new HD PENTAX-DA 55-300 mm F4-5.8ED WR is a versatile telephoto zoom lens that features the PENTAX high-grade multi-layer High Definition (HD) coating and dependable weather-sealed construction.

Complementing the largest offering of APS-C optimized lenses in the imaging industry, the new HD PENTAX-DA 55-300mm lens is the 28th in the Ricoh Imaging lineup of PENTAX K-mount lenses architected and engineered to perfectly pair with an APS-C-sized sensor. With a zoom ratio of approximately 5.5 times, the  55-300mm range  covers a wide range of focal lengths from medium to super telephoto and thanks to the sturdy and dependable weather-sealed construction the HD PENTAX-DA 55-300mm lens can also handle a wide variety of weather conditions ensuring moisture or rain are never the cause for a missed photo. Additionally, thanks to the treatment of the PENTAX HD coating, photographers are assured much higher light transmittance than conventional multi-layer coatings, delivering sharp, clear images with significantly reduced flare and ghosting, even under demanding, backlit conditions.

“With the announcement of the  our new long zoom 55-300mm lens, Ricoh Imaging now offers twice as many APS-C optimized lenses as some of our competitors,” said Jim Malcolm, Executive Vice President, Ricoh Imaging. “Pair this with our robust family of APS-C DSLRs, which includes the newly announced PENTAX K-3, and consumers a guaranteed an unequaled imaging experience that combines sharp optics with powerful electronics to create beautifully crisp and clear images.”

Ricoh Imaging’s full line of APS-C cameras includes the full-featured, entry-level K-500; the customizable, weather-sealed K-50; the robust, highly-regarded K-5IIs as well as the standard setting K-3, which touts a host of professional-grade features like a high-resolution 24 megapixel image sensor, fast 8.3 frames per second frame rate, selectable anti-aliasing filter and easy and seamless wireless connectivity with unprecedented functionality.

Pricing and Availability

The HD PENTAX-DA 55-300 mm F4-5.8ED WR will be available for purchase online at www.us.ricoh-imaging.com and at retailers nationwide in November 2013 for a suggested retail price of $449.95.

To learn more about the new PENTAX K-3 and Ricoh Imaging’s unmatched lineup of APS-C DLSRs and lenses as well as other Ricoh Imaging products, please visit www.us.ricoh-imaging.com.

HD Pentax DA 55-300mm f/4-5.8 ED WR specifications

Principal specifications
Lens typeZoom lens
Max Format sizeAPS-C / DX
Focal length55–300 mm
Image stabilisationNo
Lens mountPentax KAF2
Aperture
Maximum apertureF4.0 - F5.8
Minimum apertureF22.0 - F32.0
Aperture ringNo
Number of diaphragm blades6
Optics
Elements12
Groups8
Special elements / coatingsED glass elements
Focus
Minimum focus1.40 m (55.12)
Maximum magnification0.28×
AutofocusYes
Motor typeScrew drive from camera
Full time manualYes
Distance scaleYes
DoF scaleNo
Physical
Weight466 g (1.03 lb)
Diameter71 mm (2.8)
Length112 mm (4.39)
SealingYes
ColourBlack
Zoom methodRotary (extending)
Filter thread58 mm
Hood suppliedYes
Hood product codePH-RBI 58mm
Tripod collarNo

Additional images