Opteka T-Mount Adapter for Olympus Evolt System E-1, E-3, E-5, E-30, E-300, E-330, E-410, E-420, E-450, E-500, E-510, E-520, E-600 and E-620 Digital SLR Cameras High quality anodized aluminum construction Smooth mounting surfaces allow for effortless attaching Infinity focus allowed Allows you to mount any T-Mount lens your telescope on your camera body Compatible with t-mount lenses such as 500mm mirror, 500mm preset, 420-800mm and 650-1300mm