canon カメラ

シグマ/Sigma 300-800mm f/5.6 EX DG APO IF HSM Lens f/EOS USA 595101 SG300800EOSD

Construction:18 elements in 16 groupsAngle of view:8.2°- 3.1°F stop range:F5.6 - F32Closest Focusing Distance:236.2 in. / 600cmMaximum Magnification:1:6.9Filter Size:46mm (Rear drop-in type)Dimensions (Length x Diameter):6.1 in. (dia) x 21.4 in. (length) 165.5mm (dia) x 544mm (length)Weight:207.4 oz. 5 880g・New coating reduces Ghost and Flare・Equipped with ELD (Extra Low Dispersion) glass elements・HSM (Hyper Sonic Motor for Canon EOS mount lenses)・Features a drop-in filter・Internal Focusing and Internal Zooming・Accepts both 1.4X and 2X APO EX Tele-ConvertersFrom 300mm telephoto to 800mm ultra-telephoto this new lens provides a constant fast maximum aperture and is optimized for digital SLR cameras. This lens covers the telephoto range from 300mm to the ultra-telephoto range up to 800mm. By continuously varying the angle of view from 8.2° to 3.1° the lens takes a lot of the footwork out of picture composition. The new multi layer lens coating and lens design reduce flare and ghost which is a common problem with digital cameras and also creates an optimum color balance. 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 HSM models provide silent high-speed and precise auto-focusing with full time manual focus override. 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. Since focusing and zooming do not change its overall length this lens is easy to hold and use. In addition since the front of the lens does not rotate a circular polarizing filter can be easily attached and used. When this lens is used with the 1.4x EX or 2x EX Apo Tele Converters (optional) it becomes a 420-1120mmF8 MF lens or a 600-1600mm F11 MF lens respectively.

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