50mm f/2 APO-Summicron-M ASPH.

• Leica Order No. - 11141
• Production era - March 2013-
• Angle of view (diagonal, horizontal, vertical) - 47° / 40° / 27° (with M8 + M8.2 : 36° / 30° / 20°)
• Optical design
  • Number of lenses/groups - 8 / 5
  • Position of entrance pupil (from bayonet flange) - 24.4 mm
  • Focus range - 0.7 m to ∞
• Distance setting Scales - Combined meter / graduation
• Smallest object field - approx. 271 mm x 407 mm - (with M8 + M8.2 : 203 mm x 305 mm)
• Largest reproduction ratio - approx. 1:11.3
• Aperture Setting / Function - 11-blade prefix with click-stops, half steps
  • Range - f/16-f/2
• Mount - Leica M quick-change bayonet
• Lens hood - Built-in, extendable by rotating
  • Filter mount - Female thread for screw-on E39 filters, non-rotating
• Dimensions and weight
  • Length - approx. 47 mm
  • Largest diameter - approx. 53 mm
  • Weight - approx. 300 g
• Manuals & brochures
  • 50mm f/2 APO-Summicron-M ASPH.Tech Data.pdf - courtesy Summilux.net
  • Leica Monochrom + 50apo2 Brochure.pdf

From manufacturer's spec data as of May 2012

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50mm f/2 APO-Summicron-M ASPH. Serial Numbers

Serial numbers compiled from known lenses

SN Start	SN End	Product	Year	Total
~4138043	4235363-	50mm f/2 APO-Summicron-M ASPH.	2013	11,590+
-429041X	4290478-	50mm f/2 APO-Summicron-M ASPH.	2014	unknown
TOTAL	ASSIGNED	SERIAL NUMBERS	2013-	unknown

~ stolen lens, please report if on sale