Summar 5cm f2. The Leitz code is SUMUS. This example has a serial number in the 190,000 range and was made in 1933. It features a six-blade aperture and Continental-style aperture markings from f2, 2.2, 3.2 onward. The distance scale is in feet. It takes A36 filters and is uncoated.

The Summar 5cm was one of Leitz’s representative high-speed standard lenses of the prewar era.

This example is the version commonly known as the black rimmed Summar, produced in relatively small numbers after the early fixed-barrel version known as the Hyottoko Summar. The front section of the barrel is finished in black paint, while the rest is chrome plated. Around this period, Leitz began adopting chrome plating for its products.

The Summar evolved from the first Hyottoko version to the black-front version, followed by the collapsible type that was produced in the greatest numbers. Each barrel style appeared in both nickel and chrome variations, and the Tropen Summar was also introduced toward the end of the model’s production.

Among them, this black-front Summar was made in relatively small numbers and is a rare lens. Simply having the front section finished in black gives it a distinctly classical appearance and makes it especially attractive when mounted on a vintage Leica camera.

There is some paint loss on the black-painted front section and a few light rub marks on the barrel, but there are no noticeable scratches or dents. For this lens, the overall cosmetic condition is remarkably nice. The collapsible barrel is also clean and retains a beautiful shine.

Fully overhauled in September 2026. The aperture and helicoid rings now operate smoothly and feel very pleasant to use. Rangefinder coupling works perfectly, and focus is accurate.

The front element shows a few very light cleaning marks visible only under a strong LED light, along with some age-related discoloration of the glass. However, there is no haze or fungus, and the glass remains clear and bright.

The anti-reflection matte lacquer inside the barrel has also been carefully reapplied. While retaining the soft rendering characteristic of the Summar, this should help produce a somewhat cleaner and more defined image.

Original front and rear caps are included. The front cap shows some signs of use, but it is the rare flat type.

Mounted on a semi-chrome Barnack Leica, this Summar should look especially striking.