Pentax HD DA AF 1.4x AW Rear Converter

The Pentax HD DA AF 1.4x AW Rear Converter extends the focal length of the attached Pentax lens by 1.4x, while maintaining autofocus functionality (providing the lens has a maximum aperture of f/4.0 or brighter) and minimum focusing distance. The Rear Converter is made with a weather-resistant, dustproof construction for all-weather shooting and mounts between the camera body and main lens. The converter is compatible with the Pentax K-3, K-50, K-500, K-30, K-5 II, K-5 II s, K-5, K-01, K-7, and K-r.

Price: £ 399.99 from Wex Photo Video