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105 mm f/2.8 EX DG Macro Lens Canon AF
The Sigma 105mm f/2.8 EX DG Macro Lens has super Multi Coating that reduces flare and ghosting that tends to occur when using digital SLR cameras. The Sigma 105mm f/2.8 EX DG Macro Lens offers high performance medium telephoto macro lens optimized for digital cameras.The Sigma 105mm Macro 105mm f/2.8 EX DG allows greater working distance between the lens and subject. High contrast and excellent image quality are made possible in all shooting ranges. This macro lens is ideal for digital SLR cameras as well as film SLR cameras.Reduces flare and ghost - This new medium telephoto macro lens employs a new design concept for digital SLR cameras. Its new lens power layout produces an excellent optical performance and also reduces flare and ghost. This new lens is designed to reduce the influence of harmful light caused by reflections from the digital image sensor.An easy to use 105mm medium telephoto lens - MACRO 105mm f/2.8 EX DG lens is very suitable for taking pictures in nature and it enables to use of natural light conditions or flash. The greater working distance of this lens is very advantageous when taking the picture of a flower among the branches or an insect. You do not shake your subject when you want to take its precise details without blurring by using a tripod. The narrow angle of view is a great aid for simplifying backgrounds and shallow depth of field makes it easier to handle the composition. This lens would have an equivalent field of view of a 178mm telephoto macro lens on a digital SLR camera (when used with the SD10). Minimum aperture of f/45 - Depth of field of medium telephoto macro lenses is generally very shallow; however, Sigma, Canon and Konica Minolta mounts of this lens have a minimum aperture of f/45 (or f/32 for Nikon and Pentax mounts) for incredible depth of field.Screw-in lens hood - A screw-in hood is included, for convenient use of circular polarizing filters. It is possible to attach an 77mm filter in front of the lens hood.Dual Focus (DF) system - This lens also incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during auto focusing. The large focus ring offers smooth and positive action whilst focusing manually....

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