Opteka OPT-2X

Buyer guide for Opteka High Definition 2X Telephoto Converter for the Opteka 650-1300mm, 500mm & 800mm SLR Lenses. Doubles your zoom on the Opteka 650-1300mm, 500mm Opteka OPT-2X Preset, 500mm Mirror and 420-800mm T-Mount Lenses! Works ONLY with compatible T-mount Lenses High Definition Glass ... Learn more »

Opteka OPT-2X Review: Opteka High Definition 2X Telephoto Converter for the Opteka 650-1300mm, 500mm & 800mm SLR Lenses. I have a 500mm telescope lens ant my sony alpha 200 cdigital camera it is working very well. But it is only for suny days. 4 ... Read more »

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