21mm f/3.4 ASPH Super-Elmar-M

• Production era - 2011-current
• Angle of view (diagonal, horizontal, vertical)
  • for 35mm (24 x 36 mm) - 91°, 80°, 59°
  • for M8 (18 x 27 mm) - 74°, 64°, 46° (Equivalent focal length : approx. 28 mm)
• Optical design
  • Number of lenses/groups - 8 / 7 - Aspherical surfaces: 2
  • Position of entrance pupil - 15.6 mm (related to the first lens surface in light direction)
• Distance setting
  • Focus range - 0.7 m - ∞
  • Scales - Combined meter /feet graduation
  • Smallest object field - 706 mm x 1059 mm (35mm) / 530 mm x 795 mm (for M8)
  • Largest reproduction ratio - 1 : 29.4
• Aperture
  • Setting/Function - With click-stops, half values available, 9-blade manual diaphragm
  • Lowest value - f /16
• Bayonet - Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models
• Filter mount/Lens hood
  • Non-rotating
  • Female thread - for screw-on filters E46
  • Male thread - with stop for lens hood (included in delivery)
• Dimension and weight
  • Length - ca. 43 /55 mm (with /without Lens hood)
  • Largest diameter - approx. 53mm
  • Weight - approx. 279 g
• Inscription - LEICA SUPER-ELMAR-M 21mm 1 : 3.4 / 21 APSH. E46 4XXXXXX
• Source - Manufacturer's Technical Data 21 Jun 2011

Comment

• Reviews
  • Erwin Puts Blog "I am asked quite often what three or four lenses I would select that best represent the Leica philosophy.

For this moment in time I would propose the following set: Super-Elmar-M 3.4/21mm ASPH Summilux-M 1.4/35 mm ASPH (latest version) Summicron-M 2/75 ASPH Here are the arguments: . . ."

• • Erwin Puts
  • Ken Rockwell
• Forum discussion
  • [1] [2]

21mm f/3.4 ASPH Super-Elmar-M Serial Numbers

Serial numbers compiled from known lenses

SN Start	SN End	Product	Year	Total
-4108622	4108934-	Super-Elmar-M ASPH f= 21mm 1:3.4	2011	313+
-4121216	unknown	Super-Elmar-M ASPH f= 21mm 1:3.4	2011	unknown
TOTAL	ASSIGNED	SERIAL NUMBERS	2011-	unknown