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Specifications for the EF 28-70 f/3.5-4.5 II Marketed June 1988 Lens Construction (group) 9 Lens Construction (element) 10 No. of Diaphragm Blades 5 Minimum Aperture 29 Closest Focusing Distance (m) 0.39 Maximum Magnification (x) 0.22 Filter Diameter ( mm ) 52 Maximum Diameter x Length ( mm ) 70 x 76.5 Weight (g) 285
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