21mm f/2.8 Elmarit-M: Difference between revisions

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'''Leica Order No.''' - 11 897
'''Era''' - pre2004-Current
'''Materials''' - Anodized aluminum / chrome steel,  brass, and optical glass
'''Number of lenses/groups''' - 9/7
'''Angle of view''' diagonal, horizontal, vertical - 92°, 81°, 59°
'''F stop range''' - 2.8 > 16
'''Closest focusing distance''' - 2.3' / 0.7m
'''Smallest object field''' - 696 mm x 1.044 mm
'''Maximum magnification''' - 1:29
'''Diaphragm setting / type''' - Manual with click-stops, (including half values)
'''Bayonet''' - Leica M quick-change bayonet
'''Lens hood''' - Separate, clip-on type, lockable
'''Filter type''' - Internal thread for screw-in type filters, size E55
'''Dimensions'''  Length x Diameter - 46 x 58mm
'''Weight''' - 415 g / 300 g (silver chrome- / black anodized finish )

Latest revision as of 16:58, 14 December 2008