There are some variant of Jupiter 9. The old silver version and range finder version is said to be sharper. Mine is black version in M39 screw mount with 15 blades.
First shot was wideopen, just like some people say, soft focus for portrait. Well I have some sharp lenses, so I'm not expect sharpness from Jupiter 9. Then I tried focus infinity.. Ooops, it doesn't reach infinity with M39-EOS adapter. I asked mflenses fellow, someone said that it's common for M39 lenses. Well, I'll let it be, it's for portrait, not landscape.
Like some other old lenses with good bokeh, sharpness isn't important. Trioplan 100/2,8 fro example. I like bokeh of this J9
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| crop 100% from above |
Data from zenitcamera.com
| Focal Length: 85 mm (84.46 mm) Relative aperture: 1:2 Angle of view: 28 ° Frame size: 24x36 mm Front vertex focal distance: Back vertex focal length: Distance from first to last the surface: Number of elements / groups: 7 / 3 Operating distance: 28.8 mm, 34.85 mm, 44 mm 45.2 mm 45.5 mm Number of diaphragm blades: rangefinder and options for SLR cameras - 15 Limits the scale of the diaphragms: 1:2 - 1: 22 Closest focusing distance: rangefinder option - 1,15 m option for SLR cameras - 0,8 m Jupiter-9-automatic - 1,2 m Connections: lens with the camera: M24x1 ( Narcissus ), M39x1, mount Kiev / Contax, Kiev-mount machine, M42x1 for screw-in tips: SpM49x0, 5, M49x0, 75 for donning Tips: Ø51 mm location for mounting filters: Forward Resolution of N (center / edge): Initial - 30/18 lines / mm Jupiter-9-automatic - 32/23 lines / mm Transmittance: 0.75 Formula Color: no data Type of enlightenment: chemical, single-layered, multi- Dimensions: length of the lens set to infinity, with lids: ranging threaded version - 80 mm option for SLR cameras - 65 mm Jupiter-9-machine - 62 mm maximum diameter of the rim: rangefinder option - 60 mm option for SLR cameras - 68 mm Jupiter-9-machine - 56 mm Weight: rangefinder option - 335 g option for the SLR - 400 g Jupiter-9-machine - 400 grams |
