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Equipment Review: Jupiter-12 35mm f/2.8 LTM

2/12/2016

3 Comments

 
Continuing the rangefinder equipment reviews following my previous review of the Epson R-D1s, I'll be diving into lenses for the system. The Jupiter-12 is a very peculiar lens, as it is a copy of a 1930's Zeiss lens, the Zeiss 35mm f/2.8 Biogon for the Zeiss Contax rangefinder camera produced in Jena, Germany. Following WWII, and the division of Germany, Russia received the Zeiss factory located in Jena, resulting in the acquisition of Zeiss camera and lens designs. My copy of the this lens was produced by LZOS in 1973, and was produced for export as shown by the Roman characters as opposed to Cyrillic Script.
Picture
The side of the lens. Such a beautiful hyperfocal depth of field scale. Makes zone focusing easy! Only downside, distances are marked in meters.
The build quality is good. It's an all metal and glass construction with a very smooth focus ring (even though it is quite small!) Here's where it gets interesting. The filter ring is actually how you set the aperture. It can make it a little slow at times having to look at the front of your lens to change the aperture, and sometimes it's easy to forget what aperture you've set. The aperture ring is de-clicked meaning you actually have to look at it when making changes.
Picture
Tiny front element, notice the markings for aperture numbers! You literally turn the filter thread ring to change the aperture. In addition, notice the early single coating on the optics.
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Close-up on the rear element. See the threads? That's where it mounts to the camera.
The coolest thing about this lens is definitely the massive rear element which sits millimeters away from the shutter. On some cameras, like the Voigtlander Bessas, and some Canon rangefinders, the lens actually makes contact with the shutter and cannot be used without causing serious damage to both the camera and lens! The majority of the optics sit behind the lens mount with only the front 2 elements in front of the lens mount. While this results in stunningly sharp images on film, it has some issues on digital. This design also yields almost zero distortion, which is incredible.
Picture
Great resolution in the center, but notice the smearing in the extreme corners. Epson R-D1s, Jupiter-12 35mm f/2.8 @ f/2.8.
Looking at the image quality of such an old design, it's pretty incredible how well this lens performs. Center performance is very good, and the corners lag behind on digital. This is caused by how close the lens sits to the film plane, and occurs with most rangefinder lenses that recess into the shutter box.  On film however, you won't see the magenta casts or corner smearing that can be visible on digital. Here's a bonus though, since the Epson R-D1s is a 1.5x crop, the corner issues aren't as bad as a full frame Leica M9!
Picture
So sharp, great contrast and colors. Epson R-D1s, Jupiter-12 35mm f/2.8 @ f/5.6.
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Woah baby, flare! Epson R-D1s, Jupiter-12 35mm f/2.8.
Contrast wide open is generally alright. This lens appears to be only single coated, but if it is multi-coated, it is a very early iteration. This results in not as much contrast as modern lenses, and some interesting flare performance. That being said, that is what gives this lens it's unique and vintage look. Colors generally have a neutral and look until it flares, and then things get fun!
Picture
Look at that BOKEH! Epson R-D1s, Jupiter-12 35mm f/2.8 @ f/2.8.
How's the bokeh? Well, it's actually quite good. It's a little hard edged, and a little swirly, but it has such a fantastic characteristic. Also, the colors are beautiful. You definitely have to be close to your subject to get bokeh as it's a relatively slow (as compared to a f/1,4 or f/2) wide angle lens, but it's size and weight make up for it. I don't mind carrying it around unlike the Canon 35mm f/1.4 (Which I LOVE, but it's big and heavy!)
Picture
Jupiter-12 35mm f/2.8 compared to the Canon EF 35mm f/1.4. The difference is insane!
In summary, this is an excellent little lens on film, and a great little lens on the right digital body. The price is great as they can be picked up for less than $100 USD, and it's in a way a piece of history representing early pre-war Zeiss designs and the period of time where Germany was divided, and the time period when the USSR existed.
Picture
One more cool fact, since it was made prior to 1991, it's made in the USSR!
To view other photos from this lens and view photos in high resolution, head over to my Flickr page where I have the photos posted in full resolution, and check out the results for yourself!

https://www.flickr.com/search/?user_id=scottscheetz&tags=jupiter1235mmf28ltm&view_all=1
3 Comments
Danny Peters
11/22/2017 10:37:09 pm

Everyone (who hasn't tried) says this lens doesn't work on Bessas, that it touches the shutter curtain.

This is false. I use one on my Bessa L. The only problem is that "it doesn't focus properly," some people--including Yuri of Fedka, who I bought the lens from, say. I've done some basic lens tests (and by basic . . . well, let's just say it involved a lot of note cards, a Sharpie, and a chain link fence), and from what I can tell, everything is fine from 1 meter to . . . uh . . . not sure. I used a yellow filter and crappy film, so everything past 5 meters is hard to discern. But my hunch is that infinity is an issue.

Anyway, just came across this and thought I'd let you know my experience.

-Danny Peters
IG: dannypetersphoto (with, at this point, zero Jupiter 12 shots)

Reply
Scott Scheetz
11/22/2017 11:35:19 pm

Danny,

Thanks for your comments! I've never had any problems with it touching the curtain. I've run it on a Canon VI-L (very similar to the Canon P with the addition of multiple frame-lines), the Bessa L, the R-D1, a Leica IIIf, and a Leica M4-2. I've also never had focusing issues. This is the first time I've heard about people having focusing issues. I'm sorry to hear that your copy has issues. Perhaps the rear group isn't seated properly as it is fairly easy to unscrew (and there should be a shim there between the group and where it screws in if my memory is correct).

Best of luck! Hopefully you'll figure it out and maybe fix it!

Thanks!
- Scott S

Reply
Cory Shelton link
12/11/2020 06:45:10 am

Nice share, thanks for posting

Reply



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