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

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(Created page with "400px *'''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 f...")
 
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[[Image:M21f34.jpg|400px]]
[[Image:M21f34.jpg|500px]]
*'''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)
*'''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'''  
*'''Optical design'''  
**'''Number of lenses/groups''': 8 / 7 - Aspherical surfaces: 2
**'''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)
**'''Position of entrance pupil''' - 15.6 mm (related to the first lens surface in light direction)
*'''Distance setting'''  
*'''Distance setting'''  
**'''Focus range''': 0.7 m - ∞
**'''Focus range''' - 0.7 m - ∞
**'''Scales''' - Combined meter/feet graduation
**'''Scales''' - Combined meter /feet graduation
**'''Smallest object field''' - 706 mm x 1059 mm (35mm) / 530 mm x 795 mm (for [[M8]])
**'''Smallest object field''' - 706 mm x 1059 mm (35mm) / 530 mm x 795 mm (for [[M8]])
**'''Largest reproduction ratio''' - 1 : 29.4
**'''Largest reproduction ratio''' - 1 : 29.4
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**'''Largest diameter''' - approx. 53mm
**'''Largest diameter''' - approx. 53mm
**'''Weight''' - approx. 279 g
**'''Weight''' - approx. 279 g
*'''Source''' - Manufacturer's Technical Data 21 Jun 2011

Latest revision as of 01:40, 26 June 2011

M21f34.jpg

  • 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, 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
  • Source - Manufacturer's Technical Data 21 Jun 2011