The Opteka 650-1300mm high definition manual focus super telephoto zoom lens is perfect for the professional and amateur photographer alike. 8 Lens elements in 5 groups of low-dispersion multi-coated HD optical glass helps to reduce chromatic aberrations for sharper image quality.
Using a 2x tele-converter with
a 650-1300mm lens will effectively increase the focal length to 1300-2600mm. A
lens set to f/8 will now be f/16. There is a built-in, rotating tripod mount
for easily attaching to your tripod or monopod. It's an extremely powerful
telephoto zoom lens with the versatility that you need. This lens is great for
the wildlife or nature photographer who wants to be hidden while taking photos
of the subject.