85 mm / F2 – Jupiter 9
Lens JUPITER 9 2/85
- Focal Length: 86 mm
- Diaphragm: F2
- Minimum Focusing Distance = 1,2 m
The optical circuit of JUPITER 9 2/85 was copied with Carl Zeiss Jena Sonnar 2/85. The JUPITER 9 2/85 lens is solidly assembled – all made of metal and glass. The focus ring rotates smoothly. During focusing, the front lens does not rotate, but the frame rims forward. The focus ring rotates 270 degrees. During focusing, the entire lens unit 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 an installation ring and a diaphragm preset ring. The installation 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 its help you can set any value of the number F. The aperture consists of 15 petals already.
On the open diaphragm, the lens lacks any sharpness and contrast, which can be skillfully applied to create portraits. At the aperture of F / 5.6 JUPITER 9 2/85 gives normal sharpness.
Features of the JUPITER 9 2/85 lens:
- A large maximum F / 2.0 aperture and a focal length of 85 mm make it easy to control the depth of the sharply-imaged space.
- The lens is quite heavy.
- The aperture consists of 15 petals and is ideal for shooting portraits, giving an even bokeh. Also, in creating an excellent bokeh helps an excellent Sonnar scheme for 7 elements in 3 groups.
Lens JUPITER 9 2/85 – a lens with a strong soft effect on a fully open aperture. From the aperture of F / 2.8, the lens significantly increases its sharpness. Can serve as an interesting creative lens, in particular for creating portraits.