Recently I had a question about the Kenko teleconverter about if it functions with SDM lenses and if the teleconverter hurts image quality. I thought this was a good request and warranted an article or two on the blog. If you are not familiar with teleconverters (TC for short), they attach between the camera and lens allowing you more reach, or rather more magnification. Some people feel they are not necessary and hurt image quality, but I personally feel they can be of use and some of the available teleconverters don’t cause large drops in image quality. Here is the Kenko teleconverter sandwiched between a DA* 300mm lens and K10D camera body: The lens, teleconverter, and camera. Pentax does not have any teleconverters available in the USA for sale, but private sellers at places like the pentaxforums.com marketplace have a few options available. The Kenko Pz-AF 1.5x Teleplus SHQ is an older teleconverter that is still available in Japan that is available here through those secondary me...
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