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Sigma announce 500mm f/4.5 EX DG HSM telephoto - Fast maximum aperture telephoto lens with two Extraordinary Low Dispersion (ELD) glass elements optimized for digital SLR cameras.
Two ELD glass elements in the front lens elements reduce chromatic aberration to a minimum and also ensure sharp, quality images of high contrast.
The overall length of the lens does not change during focusing, ensuring convenient handling and ease of use.
The AF drive for Sigma SA, Canon and Nikon S.L.R. cameras features Sigma’s ultra-quiet and high-speed Hyper Sonic Motor (HSM). It also features a drop-in 46mm filter holder in the rear part of the lens barrel, which can be rotated to facilitate the use of filters, including a polarizing filter.
By adding an APO teleconverter (optional extra), you can use this lens as a 700ｍm Ｆ6.3 MF ultra-telephoto lens with a 1.4X EX teleconverter, or as a 1000mm F9 MF ultra-telephoto lens with a 2X teleconverter.
Focal Length 500mm
Minimum Aperture f/32
Lens Construction 12 Elements in 9 Groups
Angle of View 5°
Number of Diaphragm Blades 9pcs
Minimum Focusing Distance 400cm(157.4”)
Maximum Magnification 1:7.7
Filter Size 46mm (drop-in type)
Lens Hood Bayonet Hood
Dimensions Diameter 123mm (4.8”) x Length 350mm (13.7”)
Fittings Sigma, Canon and Nikon-D (Konica/Minolta and Pentax TBA)