The focus ring rotates smoothly. During focusing, the front lens does not rotate, and the body frame moves forward. The focus ring rotates 270 degrees!
During focusing, the entire lens block moves. The minimum focusing distance is 80 cm. The maximum ratio for macro photography is 1:7.3. The lens can use standard filters with a diameter of 49 mm. The lens has a setting ring and an aperture preset ring.The setting ring can take one of the following fixed values: F / 2, 2.8, 4, 5.6, 8, 11, 16. The preset ring rotates smoothly and with this you can set any value of the F number.
There is also a depth of field scale for the same F number values as on the aperture ring. It is very nice that the diaphragm consists of as many as 15 blades.Focal Length: 85mm (84.46mm). Front top focal length: -73.42 mm. Rear top focal length: 40.71mm. Distance from first to last surface: 54.35 mm. Working lengths: 28.8 mm; 34.85 mm; 44 mm; 45.2 mm; 45.5 mm. Number of aperture blades: 15. Aperture scale limits: 1:2-1:22. The lens layout is the same as that of the Zeiss Sonnar 85/2 and calculated by Ludwig Bertele in 1932.
Recalculated from 1945 to 1947 in the USSR. The Jupiters are not literal copies, as the original Zonnars require certain grades of optical glass not produced in the Soviet Union. Therefore, from July 1947 to April 1949, under the guidance of optician Mikhail Maltsev, 4 Zonnar lenses were re-calculated at the GOI for the range of glasses available in the USSR.
Nevertheless, some of them until 1954 were produced at KMZ from the exported stocks of German glass under the name "Jupiter". First of all, interchangeable lenses were copied, developed by Ludwig Bertele back in 1932 for Contax cameras, these are Zeiss Sonnar 50 / 1.5; Zeiss Sonnar 50/2.0 and Zeiss Sonnar 85/2.0. They were intended for the Soviet copy of the same cameras, the production of which was launched at the Kiev plant "Arsenal" under the name "Kyiv". How to use with modern cameras?Lenses with an M42 thread (M42 X 1/45.5), such as the lens from this review, are very easy to use on almost any modern digital camera (both SLR and mirrorless), for this you just need to choose the right adapter (adapter). There is no need to carry out any additional actions to remake the lens.
This item is in the category "Cameras & Photography\Lenses & Filters\Lenses". The seller is "your_ussr_lens" and is located in this country: BY.This item can be shipped worldwide.