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Lens Construction (Groups/Elements) 4 groups/ 5 elements 4 groups/ 7 elements Coating Multiple layer Multiple layer Exposure Magnification (equivalent to) Approx. 2 times
(1 diaphragm) Approx. 4 times
(2 diaphragms) Depth of field 1/1.4 of prime lens 1/2 of prime lens Barrel Length 19.4mm 43.5mm Weight 132g 184g Maximum Barrel Diameter 68.0mm 68.5mm Mount Canon, Minolta, Nikon Canon, Minolta, Nikon Note: All specifications pertain to the Canon mount, other mounts may vary slightly.
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