50mm f/1 Noctilux-M

• Leica Order No. - 11 821 - 11 822 - 11 603 / LLC - 131

• Era - 1976-2008 / Serial Nos. -2919656 1st version; -3220708 2nd version; Puts lists 4 versions per hood size including the last version with built-in hood from 1994.

• Variants - 1st version had E58 filter size

• Lens mount - Leica M-bayonet

• Number of lenses/groups - 7 /6

• Aperture range - f/1 > f/16

• Focusing range - 1 m / 3.28 ft < ∞

• Smallest object field - 410 mm x 615 mm

• Maximum magnification - 1:17

• Diaphragm setting / type - With click-stops, half values available, manual diaphragm

• Angle of view diagonal, horizontal, vertical - 47°, 40°, 27°

• Position of entrance pupil - 42.9 mm (related to the first lens surface in light direction)

• Scales - Combined meter/feet graduation

• Filter mount/Lens hood - internal thread for screw-in type filters E 60 / built-in, telescopic (1st version had E 58 filter size)

• Accessories - Leica M Viewfinder Magnifiers 1.25x & 1.4x; Hood: 12519, 12539, 12544

• Materials - Anodized aluminum and optical glass

• Focal length - 52.4 mm / 2.06 in

• Length to bayonet flange - 62 mm - 2.4 in

• Largest diameter - approx. 69 mm / 2.7 in

• Weight - approx. 630 g / 24.7 oz

• Inscription - NOCTILUX 1:1/50 LEITZ CANADA 2XXXXXX or LEICA NOCTILUX-M 1:1/50 E 60 2XXXXXX

• Designer - Walter Mandler

• On the street - $US 6,495 (Uncoded version) 14,695.00 (Last 100 - Boxed Edition) in 2008