Bower MZ 5000 lens F=650-1300mm 1:8-16 86mm

This extrememm f/8-16 Manual Focus Lens from Bower is an economical way to achieve some ultra-telephoto photography, all the way up to 1300mm. This is a T-mount lens, which means that aperture is not communicated to or controlled by the camera body, and as such must be used only in aperture-priority auto-exposure mode ( if your camera has it ) or in the manual exposure mode. There are T-mounts available for every modern DSLR system as well as for older film cameras and even C-mount cameras. It will work on both "full frame" digital cameras as well as the smaller-format APS-C ( 15 x 22mm ) cameras, but has only one effective aperture at any focal length, which varies from f/8 at 650mm to f/16 at 1300mm. That's not much of a hindrance, however, as you'd likely use this lens at its relatively small maximum aperture in any case. This lens requires bright light and a high ISO setting on the camera to get a fast shutter speed ( or fast film in a film camera ), and needs a sturdy tripod or monopod, but can deliver very sharp results if used properly. The lens features an incredible zoom range. This lens has a two-touch zoom/focusing system. There is a push-pull ring for zooming, and another ring for focusing. Multi-coated elements reduce flare and increase light transmission. The white lens barrel helps reduce heat buildup. The aperture is fixed-position, but only varies based on focal length. It has a deep lens shade with matted, dark internal coloring. The lens has a tripod mount upon its lens barrel.