HD PENTAX-DA AF 1.4X AW Rear Converter

The HD PENTAX-DA AF 1.4X AW rear converter closes the gap between the photographer and subject by giving a 40% increase in focal length to the attached lens. It assures premium image quality by incorporating the latest in PENTAX optics technology including the PENTAX original HD coating, weather sealing and compatibility with body and lens based focusing systems. The HD PENTAX-DA AF 1.4X AW rear converter offers an extremely compact tool to enhance the versatility of telephoto lenses.


  • The HD PENTAX-DA AF 1.4X AW rear converter’s weather-resistant construction prevents the intrusion of water and moisture into the lens barrel when paired with weather sealed PENTAX DSLR bodies and lenses. The user is assured of greater durability and reliability when shooting in rain or mist, as well as at locations subject to a spray or splash.
  • Treated with HD coating, a PENTAX-exclusive multi-layer lens coating, enjoy higher light transmittance and lower reflectance than conventional multi-layer coatings. This means it produces sharp, clear images free of flare and ghost images, even under such adverse lighting conditions as backlight.
  • The HD PENTAX-DA AF 1.4X AW rear converter offers a 40% increase in focal length when mounted between the body and lens, yet has an extremely small form factor. Measuring only 20 millimeters long, its compact, lightweight design allows the user to more easily reach out to distant subjects. The minimum focusing distance of the lens is retained, allowing for the capture of larger, more detailed images in close-up situations.
    *When this rear converter is mounted, the lens maximum aperture will be smaller by 1 stop.
  • Auto Focus and Auto Aperture functionality is retained when using the HD PENTAX-DA AF 1.4X AW rear converter. The rear converter works flawlessly with both the camera-driven AF system and the lens-driven AF system (such as the SDM- and DC- series lenses).**
    **The camera’s firmware must be updated to the latest version before using the autofocus function. Compatible camera bodies are: K-3, K-50, K-500, K-30, K-5 II, K-5 II s, K-5, K-01, K-7, and K-r. Autofocus is possible with a PENTAX lens having maximum aperture of f/4 or brighter.