The Sigma 800mm f/5.6 EX DG HSM is a Ultra-telephoto lens is designed to optimize the characteristics of digital SLR cameras and features a new multi layer lens coating.
Reduction of flare and ghosting
This digitally optimised ultra telephoto lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This also ensures an accurate colour balance and high definition results.
Incorporating two Extraordinary Low Dispersion glass elements to reduce chromatic aberration to a minimum and ensure sharp, quality images. The Internal Focus system ensures the overall length of the lens does not change during focusing, ensuring convenient handling and ease of use.
The Hyper Sonic Motor (HSM) ensures an ultra-quiet, high-speed AF function as well as full-time manual focusing capability for Sigma, Canon, and Nikon mount lenses.
A 46mm filter can be inserted near the rear of the lens, and a circular polarising filter can be used in situ.
By adding a 1.4x EX APO teleconverter (optional extra), you can use this lens as a 1120mm F8 MF ultra-telephoto lens or as a 1600mm F11 MF ultra-telephoto lens with a 2.0x EX APO teleconverter.
SIGMA 800mm f/5.6 EX DG APO SPECIFICATIONS:
Lens Construction 12 Elements in 9 Groups
Angle of View 3.1 degrees
Number of Diaphragm Blades 9
Minimum Aperture F32
Minimum Focusing Distance 700cm
Maximum Magnification 1:8.8
Filter Size 46mm (drop-in type)
Dimensions Diameter 156.5mm X Length 521mm