Pentax has unveiled the HD Pentax DA AF 1.4x AW rear converter, which is designed to extend the focal length of telephoto lenses by 40%.


The new HD Pentax DA AF 1.4x AW rear converter. Pentax-Ricoh

 Optimised for Ricoh Imaging’s line of Pentax K-mount lenses, the HD Pentax DA AF 1.4xAW rear converter  has been engineered to maintain the autofocus (AF) functionality while working seamlessly with both camera-driven as well as lens-driven AF systems.  Composed of four elements in three groups, it features superior optics and incorporates the Pentax-developed HD multi-layer coating, which is designed to minimise internal reflectance while optimising light transmittance, even under adverse backlit conditions. Three airtight seals make it usable with Pentax weather-resistant, dustproof DSLRs and lenses. It is due for release in March 2014 for a price of US$599.95.