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The advent of digital SLR's requires optimum lens performance and therefore the very latest optical technology has been incorporated in the production of the New Macro 50mm F2.8 EX DG. Lens Construction 10 Elements in 9 Groups Angle of View 46.8 degrees Number of Diaphragm Blades 7 Blades Minimum Aperture F45 Minimum Focusing Distance 18.9cm Maximum Magnification 1:1 Filter Size 55mm Dimensions Diameter 71.4mm X Length 66.5mm Weight 320g
Macro lenses require a high imaging performance for photographing objects with digital SLR cameras The new advanced lens design corrects various aberrations. This macro lens is specially coated to get the best color balance whilst cutting down ghost caused by reflections from the digital image sensor. This lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. Floating Focusing System Floating Focusing system that enables this lens to photograph objects precisely in entire focusing range. Standard 50mm lens for digital SLR cameras This standard macro lens enables you to enjoy the communication with subject. When viewing through the camera's finder, you are able to move your subject, and make precise adjustment. It has a close working distance and it is very convenient for taking close-up pictures of a fossil, or other inanimate things for example. Minimum aperture of F45 Although the depth of field this medium telephoto is shallow, sometimes would be necessary to have greater depth of field, because it is difficult to take a sharp picture of a subject and the background at the maximum aperture. Minimum aperture of F45 (F45 for Sigma, Canon and Konica Minolta mounts) provides greater depth of field. A screw-in hood is included, for convenient use of circular polarizing filters.
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