巴纳克时代 · 1914–1954

Summar 50mm f/2

镜头Leica screw (LTM) mount产地 Germany1933–1940SUMAR
The first Leitz f/2 lens, offering double the light-gathering of the Elmar. A landmark in 1933; now a vintage curiosity whose rendering reflects its pre-coating era.

因何闻名

  • Leica's first fast 50mm — the f/2 Summar introduced speed to the Leica system in 1933
  • Six-element design; notorious for flare but beloved for its glowing character wide open

1933年发布的Summar 50mm f/2是徕兹首支f/2最大光圈镜头,采用六片四组结构,相比此前的Elmar f/3.5在弱光能力上有了质的飞跃。Summar的成像具有鲜明的时代特色——轻微的色差和晕化赋予其独特的复古风情,深受喜欢"老镜味"的摄影师追捧。但其光学品质不及后继的Summitar和Summicron,实际使用中需注意耀光控制。

主要参数

elements groups
6/4
minimum focus
1m

版本与涂装

Screw mount (Leitz codeword: SUMAR)

The Summar 50mm f/2 (1933–40) — Leica's first fast standard lens. Uncoated and prone to flare, but the soft, luminous rendering it produces is sought by film photographers who know what they're getting into.

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