ken.vs.ryu wrote:
are contax mount jupiter-3s better quality?
No- not that easy to sort out. "Overall", quality between the two is the same. The Contax mount is much simpler, less to go wrong with it. The Leica mounts- I've seen some that are perfect, some that needed the helical repositioned in the mount to drive the RF to infinity. Optically- production went from KMZ (Trapezoid as shown), to ZOMZ (triplet and Eyeball Logo), to Valdai- as shown. I've found that the first year or so within each company, quality varies. By 1951, KMZ hot a good stride. By 1958, ZOMZ hit a good stride. Valdai: all over the place.
Back to the safest bet is to buy one from a forum where someone actually can show pictures taken with the lens.
To add to that, my friend who bought me the Helios said that the first copy he looked at had bubbles in the glass (!), and that this was considered "normal" (!!). The second copy I ended up with has a screw in the side of the mount area which stops the lens when it is put on, and this screw was a bit too large, so he filed it down a bit. Optically, the lens is great, exactly what we expected and hoped for, but the mechanics are a little rough. I have no idea how much variation there is in the optics.
carstenw wrote:
Wow, it's tiny! Interesting rendering, very different from the usual stuff around here.
yup, size is a great match to small mirrorless cameras. size and drawing is pretty much the same as the new zeiss zm 50/1.5 though image quality falls of faster away form the center on the jupiter. i have to admit i haven't fully come to terms with how to best take advantage of it's rendering yet.
ken.vs.ryu wrote:
Is eBay my only source for a Jupiter 3?
There are a few online shops that deal in USSR glass, two I know of: http://fedka.com/catalog/index.php http://top35mm.com
Wow they sure have climbed in price.
ken.vs.ryu wrote:
are contax mount jupiter-3s better quality?
They are usually cheaper than LTM versions, and they are less likely to have been messed with since the helicoids are on the camera and the lens is very simple.
Gary Clennan wrote: carstenw wroteI have no idea how much variation there is in the optics.There is huge variation in quality with all the Jupiter lenses….
It's not limited to Jupiter lenses, Helios have the same issues with variability in quality.
Though to be fair, many have been opened up by the sellers because they need relubing, and some seem to have new lube over the old which is far from ideal.
Gary Clennan wrote: carstenw wroteI have no idea how much variation there is in the optics.There is huge variation in quality with all the Jupiter lenses….
a lot of the jupiter variation observed by westerners is due to mechanical differences between russian cameras/lenses and leica cameras rather than actual optical variation (most of the variation is in the coupling not the optics).
Am I weird that I prefer the look of most of these lenses over the "technically perfect shots" taken with modern glass? I regularly use two lenses (not Russian, one is East German and the other a southern German) and I simply love their rendering. I ordered an m39 mount and will probably order an m42 and m49 here soon. I love the character of these old lenses.
Where can I find info on some of the adjustments you speak of to make them work with modern bodies? I have a lens that I think is an old rangefinder lens, but I have never seen one like it before. It looks like the focal length is to long for its overall size (it looks like a roll of dimes) but it's in perfect shape. I think its m39 mount, but may be smaller.
I have a line on a few of the Jupiter glass. After seeing the work here, I am going to pursue it and see what is available.
I've taken a lot (200 or more) of these lenses apart in the last 10 years, shot with most of them. Most of the issues stem from differences between the Russian standard 52.4mm focal length and the Leica standard 51.6mm focal length. Some problems stem from misassembled lenses, either at the factory or by botched repair jobs. The Valdai lenses- took me a long time to find one that was optically good, most were very soft wide-open and better by F4. With these- it's the optical fixtures that have too much slop in them, the glass is not positioned within spec. I've moved glass from them to earlier fixtures with good results.
Heafty crop from earlier last year, June 30 2013, FujiFilm XE-1 and Jupiter 3 50/1.5:
The lens has an interesting background bokeh at certain times.
On this crop, looks as if some type of wet sculpted glass?
1) How sharp is the lens stopped down? Landscape sharp? Compared to the contax-g 90/2.8 for instance?
2) What different mounts is it available in? What makes for the shortest adapter length?
I kind of want to change my contax-g 90/2.8 up for something that does not have the choppy contax-g adapter, but I kind of want to have the sharp landscape element too.
kwoodard wrote:
Am I weird that I prefer the look of most of these lenses over the "technically perfect shots" taken with modern glass?..
No, I hope not.
I also prefer sometimes lenses with far from perfect quality, like the Meyer Trioplan 100 for example, or Petzval type lenses. Or I remove the AR coating from a lens, like here with the cheap Helios 44:
It's a Vostok Amphibia, model 090913M. The dial looks very much like the original Amphibias from the 70's. Acrylic crystal, automatic 2415 movement, 22mm lugs. Very nice model.
I have fitted mine with a stainless steel bezel by mr David Murphy, and the bezel insert is a Seiko lookalike.
Hawkan wrote:
It's a Vostok Amphibia, model 090913M. The dial looks very much like the original Amphibias from the 70's. Acrylic crystal, automatic 2415 movement, 22mm lugs. Very nice model.
I have fitted mine with a stainless steel bezel by mr David Murphy, and the bezel insert is a Seiko lookalike.
Nice!
I got a Vostok Amphibia with cushion case, but it won't run anymore :/ I can't for the life of me understand why.