The Jupiter-37A 135 mm f/ 3.5 (Russian: "Юпитер") - high resolution telephoto lens for a 35mm SLR with a M42 screw mount.
The letter "A" in the name of the lens means that lens has a removable shank and can be installed to the other camera system (Nikon or Pentax).
This lens is also available in version with achromatic multi-coating - MC Jupiter-37A 135mm f3.5 (since 1980). MC version is much more resistant to the backlight. Contrast decrease and flare are almost unnoticeable.
There is also a version of this lens named "MC Jupiter-37AM 3.5/135". It is an upgraded version of the older lens "MC Jupiter-37A" which was being produced earlier. "MC Jupiter-37AM 3.5/135" differs from older version with higher reliability and lower weight because of it's design improvements.
Jupiter-37 135 / 3.5 lens was recalculated from Carl Zeiss Sonnar 135mm f/3.5 according mostly to the new types of glass used. In this case, the lens reconstruction was successful.
This lens is shifting color balance a little bit to warmer colors. It produces a sharp and at the same time, soft image. Can be used as a portrait lens, but due to the high resolution can reveal all skin defects.
Comfortable smooth focusing.
Iris aperture of Jupiter-37A. Changing the aperture value is smooth, with no stop-overs.
Aperture of the lens Jupiter-37A 135/ 3.5
Angle of view - 18 °. The lens can be used at a temperature of minus 15 to plus 45 ° C and relative humidity not exceeding 80% at 20 ° C.
Resolution (center / edge): 45/30 lp / mm
There is no problem when using this lens with the adapter on the latest digital SLR and mirrorless cameras.
In present time, Jupiter-37A 135 mm f / 3.5 is quite inexpensive and easy to buy almost new. One should prefer lenses which were exported (written Jupiter in latin, not Юпитер in russian), as well as lenses with a russian quality mark or the sign of the Olympic Games of the 80th year.
There is one well-known problem - this lens usually has too much oil inside of the barrel so it often can be seen on the aperture blades.
Year when the specific lens was manufactured is easy to find out as the first two digits of the serial number.
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Posted by: Sergei Borodin Date of publication: 04.08.2010
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