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Leica Order No. – SNOOX 11501 – 11001 (ft scale)
Production era – 1955-1963 < 9,169 lenses
Variants – Early meter only; later w/ feet only in chrome or later black finish
Lens mount – Leica Screw-thread and M-bayonet
Number of lenses /groups – 6 /4
F stop range – f/5.6-f/22
Closest focusing distance – 1 m /40 in
Smallest object field –
Diaphragm setting /type –
Angle of view diagonal – 76 degrees
Filter type –
Accessories – Hood: SOOBK; Viewfinder: SLOOZ 12007 or SUOOQ; M adapter ring: IRZOO 14097
Materials – Chrome plated brass + black finish
Dimensions (length x diameter) –
Weight – 150 g /5.29 oz
Inscription – Ernst Leitz GmbH Wetzlar Summaron f=2.8cm 1:5.6
