For the opportunity Leitz Summicron-R 1: 2/50 lens overview Many thanks to Nikolai.
TTX Leitz Summicron-R 1: 2/50
Diagram: 6 elements in 4 groups
Focal length: 50mm
Diaphragm: F / 2.0-f / 16
Number of aperture blades: 6 pieces
Front Filter Diameter: 55mm
The weight: 290g
My lens has been converted to a Nikon F mount without the ability to automatically control the iris, although there is a warning on the lens For leica r only, there you can find the inscription Lens made in canada. Due to the large working distance of the lenses Leica r, such lenses are easily redone for Nikon and other systems. You can read how to use old manual lenses on modern cameras in the section on AI-S.
There are many modifications of the Leica Leitz Summicron-R 1: 2/50 lens, mainly modifications relate to the frame of the case and modifications to the optical design. Since the release of Summicron in 1964, it has been modified and made a real very high-quality fifty dollars.
The lens has only manual focus. The focus ring rotates as much as 270 degrees, which creates the possibility of fine and error-free focusing. The focus ring is metallic, in fact, like the entire lens. True, focusing on the clean viewfinder of modern CZKs is quite difficult. When focusing, the trunk of the lens lengthens by 1cm, while the front lens does not rotate. The front lens is deeply recessed in the frame of the body, like a lens Carl Zeiss Jena Tessar 1: 2.8 f = 50mm T and many others. When focusing in the middle of the lens barrel, all helicoid lenses move. Focusing on the Leitz Summicron-R 1: 2/50 is nothing special.
The lens has a maximum aperture of F / 2.0, which is 2 times (1 stop) darker than F / 1.4, which is available in many fifty dollars, for example Nikon 50mm f / 1.4 Nikkor-S Auto NON-AI. Such aperture you won’t surprise anyone. Despite the fact that this is not the cheapest 50 mm fix, which has a lens Leica only 6 pieces of aperture blades, which give the most common 'nuts' in bokeh. Aperture blades are matte. There is a depth of field scale for F / 2, 4, 8, 11, 16. Considering the readings of the scale for F / 2, we can say that the depth of field of the lens is quite large. On the lens you can find the A / M aperture control mode switch.
The lens gives a sharp image, even at F / 2.0. The lens has good contrast, even in backlight. Aberrations and other distortions in the lens are well corrected. Color rendering is normal, automatic white balance it averages the color imperfections of old lenses, and I did not notice any changes in warm or cold tones through the optical viewfinder. Cat's eye bokeh with lemons out of focus at F / 2.0 and 6-sided nuts at other F values.
All photos in the review are made on Leitz Summicron-R 1: 2/50 and the camera Nikon D40, APS-C, K = 1.5x. Photos without processing, only the size is reduced to 2MP and the data from EXIF. In the gallery you can see the pronounced bokeh of the lens.
All photos below were taken on a Leitz Summicron-R 1: 2/50 and camera Nikon D80, APS-C, K = 1.5x. Photos without processing, only the size is reduced to 2MP and the data from EXIF. On the crop, the EFR of the lens is 75mm for Nikon DX cameras.
There is nothing better than a good fifty dollars. Leitz Summicron-R 1: 2/50 is a classic, good functionality, good build and good image quality, and you can hardly find a bad fifty dollars in Leica. Therefore, the review is small.
Leitz Summicron-R 1: 2/50 is an affordable 50mm prime from Leica. Gives good image quality.
Help to the project. Thanks for attention. Arkady Shapoval.