Leica 50MM (1961–2004)

Name: Leica 50MM
Brand: Leica

At 301 grams, it balances well on an M3. Fast glass that defined a generation of street photography.

Overview

The Leica SUMMILUX 50mm f/1.4 was introduced in 1961 as a standard ultrahigh-speed normal lens for the M-mount system. The wide f/1.4 aperture gave Leica shooters unprecedented low-light capability. It was built for the chrome-domed M3s and M2s of the era, and photojournalists took to it because they needed speed, contrast, and a certain bite in their images. Later iterations refined coatings and tolerances, but the core optical formula stayed the same across its 43-year production span, which ran from 1961 to 2004 according to Ken Rockwell.

Alongside it, the Leica SUMMICRON-M 50mm f/2 arrived in 1979 as a more compact, slightly slower alternative. It is known for its micro-contrast and rendering, and a current cosmetic version has been in production since 1994. The APO-Summicron-M 50mm f/2 ASPH. (Type 6) has since joined the lineup as the modern high point of Leica's 50mm engineering, though specific production dates and pricing remain undocumented in available sources. The Summilux drew attention for its speed and presence. The Summicron earned loyalty through consistency and balance.

Specifications

Manufacturer	Leica
Product type	Standard ultrahigh‑speed normal lens
Focal length	50mm
Maximum aperture	f/1.4
Filter size	43mm
Weight	301 g
Minimum focus distance	1 m
Optical design	Traditional non‑aspherical (spherical) lens; elements 2 & 3 cemented, elements 6 & 7 separate (for 1961+ version)
Coatings	Identical coatings for all versions from 1961 through 2004
Mount	M‑Mount

Key Features

Traditional Non-Aspherical Optical Design with Cemented Elements

The SUMMILUX 50mm f/1.4 uses a spherical optical formula with no aspherical elements, typical of its era. The second and third elements are cemented, while the sixth and seventh stay separate. That layout contributes to its distinctive rendering, especially wide open. It is consistent in the 1961 and later versions, and it gives a complex bokeh with a slight swirl in the outer zones. Many photographers describe this as organic or even "alive." The lens isn't corrected to the clinical standards of modern lenses, and its imperfections are part of its appeal. Images show micro-contrast and a three-dimensional pop that digital post-processing often fails to replicate.

Consistent Coatings Across Four Decades

Leica kept identical coatings on the SUMMILUX 50mm f/1.4 throughout its entire production run from 1961 to 2004, despite evolving manufacturing techniques. Optical performance stays consistent across generations, particularly flare resistance and color transmission. Flare shows up when shooting into strong light, but it tends to appear as soft veiling rather than harsh streaks. Some find that poetic rather than problematic.

43mm Filter Thread Across Early and Chrome Versions

Both the early (1959-1961) and chrome (1961-1968) versions of the SUMMILUX 50mm f/1.4 share a 43mm filter thread, a size that was common in Leica's lineup at the time. That means a wide range of period-correct filters will fit, including UV, yellow, and polarizers.

Historical Context

The SUMMILUX 50mm f/1.4 debuted in 1961 as Leica's answer to the growing demand for faster standard lenses in photojournalism and low-light candid photography. The M-mount chrome version was produced until 1968. The SUMMICRON-M 50mm f/2 followed in 1979 as a more compact and consistently manufactured alternative, with its current cosmetic iteration dating from 1994. The APO-Summicron-M 50mm f/2 ASPH. (Type 6) is the latest version, though production details remain unconfirmed.

Collectibility & Value

The original used price for the chrome SUMMILUX 50mm f/1.4 (1961-1968) was approximately $2,270, according to Ken Rockwell's documentation. The 1994-2013 version of the SUMMICRON-M 50mm f/2 carried a new price of around $2,000 and a used value of about $1,100. The 2025 re-edition of the SUMMILUX 50mm f/1.4 is priced at $3,895, reflecting both brand prestige and material costs. No documented failure modes or common defects are cited in available sources.