35mm f/1.4 Summilux I

• Leica Order No. - 11 869, 11 871, 11 860 /LLC - 156
• Production era - 1961-1966, 1,155 in black, 1,216 in chrome
• Variants - Black and chrome versions, both also for M3 with googles
• Lens mount - Leica M-bayonet
• Number of lenses /groups - 7 /5
• F stop range - f/1.4-f/16
• Closest focusing distance - 1 m /3.28 ft
• Smallest object field - 630 x 950 mm
• Diaphragm setting /type -
• Angle of view diagonal - 64 degrees
• Filter type - Series 7, E41
• Accessories - Hood: OLLUX 12522
• Materials - Chrome plated brass (early); black lacquered alloy (late)
• Dimensions length x diameter - 38 x 53 mm / 1.50 x 2.07 in
• Weight - 245 g /8.64 oz - 195 g / 6.88 oz
• Inscription - LEITZ CANADA 1XXXXXX SUMMILUX-M 1:1.4/35
• Designers - Walter Mandler and Erich Wagner 26 Aug 1959
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35mm f/1.4 Summilux I Serial Numbers

Serial numbers compiled from Puts Pocket Pod
^ Lens nos. 1765448, 1765829, 1777005, 1777457 + 1778749 are 35mm f/1.4 Summilux (Westlicht+Schouten)

SN Start	SN End	Product	Year	Total
1765001^	1766200	Summilux f= 5^ cm 1:1.4 (M3-chrome)	1960	1200
1777001	1780000	Summilux f= 5^ cm 1:1.4 (M3 M2-chrome)	1960	3000
2060501	2061500	35mm f/1.4 Summilux (M-chrome+S-black)	1964	1000
2166501	2167700	35mm f/1.4 Summilux (M3-black)	1966	1200
TOTAL	ASSIGNED	SERIAL NUMBERS	1960-1966	6,400

Lens superseded by 35mm f/1.4 Summilux II