Super 500mm/1000mm f/8 Manual Telephoto Lens for Pentax K-1, K-S2, K-S1, K-500, KP, K-70, K-50, K-30, K5 IIs, K-7, K-5, K-3 II, K-2, K-X, K20D, K100D, K110D and K10D Digital SLR Cameras;

The 500mm f/8 High Definition Preset Telephoto Lens is an excellent addition to any photographer's collection, giving users the ability to expand their creativity and capture incredible scenes from a truly unique perspective.

The Super 500mm / 1000mm f/8 Manual Focus Lens is a classic refractor-style T-mount lens, with an aperture diaphragm in the middle of the lens body to stop down the aperture when necessary. However, it is assumed that much of the shooting with such a lens will be at its maximum f/8.0 aperture, with a tripod, monopod, or other such support. The included 2x doubler converts this 500mm lens into a 1000mm.

When combined with the included T-mount to fit your camera system, this super-telephoto works on both "full frame" cameras as well as the "APS-C" style digital SLR cameras. You can use the lens in "M" manual exposure mode or "A" aperture-priority mode only. This lens' sophisticated achromatic refractor design yields images with pleasing peak contrast and well-controlled flare. It can be used at maximum aperture on a very bright day for some images of moving subjects like.

Specifications:

Lens Construction: 4 Elements in 4 Groups
Angle of View: 5 degrees diagonal
Filter Size: 67 mm
Lens Hood: No
Aperture Range: 8.0, 11, 16, 22, 32
Minimum Focusing Distance: 33 ft / 10m
Length: 298 mm / 11.75 in.
Weight: 22.5 oz (640g)
Mount: T-Mount Required
Warranty: 5 Years

Included Items

Super 500mm f/8 High Definition Preset Telephoto Lens
Opteka High Definition 2X Telephoto Converter for SLR Lenses
Opteka T-Mount for Pentax
Opteka 67mm HD UV Ultra Violet Haze Multi-Coated Glass Filter
67mm Lens Petal Hood
Deluxe High-Power Air Cleaner Blower
Photo Dust Brush for Cameras and Lenses
Opteka Microfiber Cleaning Cloth