Opteka 420-1600mm f/8.3 HD Telephoto Zoom Lens for Nikon D5, D4S, DF, D4, D3, D810, D800, D750, D610, D600, D500, D7500, D7200, D7100, D5600, D5500, D5300, D3400, D3300 and D3200 Digital SLR Cameras

Surprisingly compact and lightweight for its focal length range, the Opteka 420-800mm f/8.3 Super Telephoto Zoom Lens excels on long backpacking excursions, just as easily as it does backyard stargazing, and handheld shots from the bleachers (using fast shutter speeds). Constructed using a simple, digitally optimized optical design comprised of 4 elements in 2 groups, the lens is intended for clear distant scenes especially when atmospheric conditions are favorable, as well as isolating nearby subjects with an impressively shallow depth of field. By eliminating the diaphragm mechanism found in standard lenses, the push/pull design (the aperture only changes with the focal length) provides perfectly circular out of focus point light sources and extremely smooth bokeh. In order to suppress flare and ghosting while maintaining color fidelity, each lens element has had our Super HD Multicoatings applied. The Opteka 2x Professional Teleconverter is a high-quality focal length multiplier that delivers enhanced telephoto versatility. It effectively doubles the focal length of your lens, providing an affordable, and portable way to extend your camera's reach. The specialized lens elements virtually eliminate color aberrations. The anti-reflection coatings enhance light transmission efficiency, improves color consistency, and reduces veiling flare. Includes