Jupiter 9 85mm f2 Portrait SLR Lens m42 Zeiss Jena Sonnar

Long focal length lens with coated optics for SLR cameras

Jupiter-9 is built on the Sonnar optical design of the German company Carl Zeiss. Its first releases began back in 1948, and then the lens was called ZK 8.5 cm. “ZK” is Zonar Krasnogorsky

Focal length: 85mm

Field of view angle: 28°

Frame size: 24×36 mm

Number of lenses/groups: 7/3

Working distance - 45.5 mm

Relative aperture: 1:2

Aperture scale limits: 1:2–1:22

Number of aperture blades: 15

Aperture adjustment - stepless

Preset aperture - yes

Near focusing limit - 0.8 m

Connections:

lens with camera - M42×1

Mounting location for filters: front

Resolution according to specifications (center/edge): 30/18 lines/mm

Light transmittance: 0.75

Weight - 360 g

The front and rear lenses of the lens are multi-coated with a subtle violet-green tint.

The ring closest to the camera is for focusing. It is quite wide and has a comfortable knurling. Convenient to use.

The full stroke of the helicoid is about 270 degrees. The stroke is long, which is very convenient when focusing at portrait distances. MDF 0.8 meters.

The diaphragm consists of 15 blades. At any aperture value they form perfectly even circles. Jupiter-9 is one of the lenses with the smoothest circles in the blur zone.

Petals blackened, matte