21mm f/3.4 ASPH Super-Elmar-M: Difference between revisions

Revision as of 01:54, 20 February 2012

Production era - 2011-current
Serial nos. - -4108622-4108934-
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

@@ Line 14: / Line 14: @@
 **'''Largest reproduction ratio''' - 1 : 29.4
 *'''Aperture'''
-**'''Setting/Function''' - With click-stops, half values available, manual diaphragm
+**'''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