Summarit 50mm f1.5 for M-mount. This is an early version of the lens. Product code is SOOIA-M. Serial number in the 1.41 million range, manufactured in 1956. The distance scale is in feet, and the filter size is E41, the same as the early Steel Rim Summilux 35mm.
The Summarit 50mm f1.5 is the successor to the Xenon 50mm f1.5 and later evolved into the Summilux f1.4. It occupies a somewhat prototype position in Leica's lens lineup, with a small number of Summarit 50mm f1.4 lenses also being produced during this transitional period.
At wide open aperture, the lens exhibits a dreamy softness and bokeh. Stopping down by 1 or 2 stops significantly improves contrast and resolution, transforming the image into a much sharper rendering. Further stopping down leads to a crisp, highly detailed image. In recent years, the unique rendering of older lenses like this one has gained popularity.
However, many Summarits suffer from poor glass quality, making it difficult to find a satisfying copy. This particular lens, however, is in excellent condition with a beautiful exterior and exceptionally clean glass for a Summarit. You’ll be able to experience its original rendering at its best.
The lens barrel is in exceptionally clean condition with almost no signs of use. It’s hard to believe that it has been nearly 70 years since its manufacture. It's rare to find an early version in such beautiful condition.
A full overhaul was completed in April 2025. Thanks to the careful servicing, the helicoid operates very smoothly, providing a pleasant user experience. The focus is also excellent, and the rangefinder coupling works perfectly.
There is a very slight balsam separation and some coating wear around the edges of the middle element. Additionally, there are one or two very light cleaning marks on the front element, but none of these affect actual performance. Considering the common cleaning marks found on Summarits, the glass is in remarkably good condition. The test shots yielded excellent results.
The lens comes with the original front and rear caps.