Corresponding AF Mount Sigma, Minolta, Nikon, Pentax, Canon
Lens Construction (Groups / Elements) 15 / 16
Angle of view (degrees) 84.1º-39.6º
No. of blades in diaphragm 9
Minimum Aperture (wide) F22
Minimum Focusing Distance (cm/in.) 38 / 14.9
Magnification 01:05.8
Filter Size (ø mm) 77
Dimensions Diameter x length (mm / in.) 83.6x87 / 3.3x3.3
Weight (g / oz.) 555 / 19.5
Fast f/2.8 constant aperture
Compact Design of just 87mm in length
Minimum focusing distance of 38cm with a maximum magnification ratio of 1:5.8
Two Special Low Dispersion (SLD) glass elements and four aspherical glass elements for maximum image quality
Internal focusing to allow use with circular polarizing filters and a petal shaped hood
Zoom Lock eliminates ‘zoom creep’
Ideal for digital and film SLR cameras
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