The ultimate super-telephoto zoom lens. For photographers seeking the ultimate super-telephoto zoom lens, the Opteka 420-800mm HD II delivers unrivaled consistency, long range performance and image quality in the most demanding situations. An...

This is a manual focus lens. You can only use the lens in "M" manual exposure mode or "A" aperture-priority mode. The Opteka 6.5mm f/3.5 Fisheye Lens is an excellent addition to any photographer's collection, giving users the ability to expand...