Product Description KENKO Teleplus Pro 300 converters are made with precision quality multicoated optical glass supplied by Hoya Corporation, the worlds largest manufacturer of optical glass. These glass elements were designed to match the optical quality of the prime lens (even at the edges) and telephoto zoom lenses. The optical design of the elements and light path is wide enough not to cause vignetting.KENKO PRO 300 AF Teleplus converters have genuine Gate Array IC (Integrated Circuitry). It means that the converter's own unique circuitry maintains signal integrity between the camera body and lens. These converters are designed to electronically operate the same way as an original manufacturer's converter.
Customer Reviews:
Good 2x magnicationJuly 22, 2007 8 out of 8 found this review helpful
This gives excellent image quality. Your viewfinder will look dark because of loss of 2 stops. Works quite well when you have good light conditions. I use it quite often with my Sigma 150mm. You may need to go into manual mode if light is not enough and the AF doesn't work. It multiplies the focal length of the master lens by 2 times. It offers full AF and metering capabilities as it has electronics and interfaces between the lens and camera and also taking care of the reduction in light. The mount is all metal. However the quality of the covering caps are not as good like Nikon orignal lens/body caps. It certainly does its job of avoiding carrying expensive high-tele end lenses. I am satisfied with this product
