answers: 249

  1. bressong
    01.04.2022

    here you go.

    from russia language world, is there any more info can be found about the modification from version “A” to “AM”.

    the reduced quality of plastic is not the turth, I once disassembled it.

    Reply

  2. bressong
    01.04.2022

    blue/purple coating

    Reply

  3. bressong
    01.04.2022

    one more info to add.

    my friend once asked the seller, his copy was uninstalled from a elctric-optical device, as a component, so there is no hood, no cap. I don't know if this is the truth

    Reply

  4. bressong
    01.04.2022

    one more question,
    J-37A/AM had relative good performance in wide open, how it compares with Jupiter21M 200/4, which had similar optic scheme.

    I have reviewed some some sample photo of J-21M, seems full open si much softer than J-37.

    Reply

  5. bressong
    02.04.2022

    J-37 is a simple but beautiful lens

    By Nikon D850

    Reply

  6. bressong
    03.04.2022

    the bokeh from Jupiter-37 is fantastic without a doubt.
    the strange thing is there are some spot or “small bubble” in the light flare.
    I found this in both of my two copies.

    Reply

    • bressong
      03.04.2022

      is any one why this comes?

      Reply

      • Rodion
        03.04.2022
      • bressong
        03.04.2022

        one of my J-37 copy, has a small and visible bubble(size like dust) in the middle optical glass. which the “bubble/dots” in the flare is more significant.

        this photo I took from my better J-37 copy, when I still find this small issue in the bokeh light flare, the first thing I checked is the glass, all the elements are relatively clean, no significant bubble or dust in the glass.

        I doubt if it is the issue from the gluewater bwteen two combined glass elements. like those modulated ASP glass has the “Onion ring”, not becasue of the spot dust between those glass elements.

        Reply

      • B. R. P.
        03.04.2022

        Bubbles in the lenses were acceptable by Soviet factory standards.

        Reply

      • bressong
        04.04.2022

        haha

        Reply

      • B. R. P.
        04.04.2022

        hihi

        Reply

      • bressong
        05.04.2022

        do you know if the Jupiter-37 is a full copy from Zeiss 135/3.5?

        Reply

      • B. R. P.
        05.04.2022

        read carefully: 6 blades vs 12, 1m. mdf vs 1.2.

        Reply

      • Rodion
        05.04.2022

        No, because J-37A was based on J-11 which was a copy of Sonnar 135/4. So, the development of J-37 and Sonnar 135/3.5 was probably independent and J-37 is not a copy of Sonnar 135/3.5.

        Reply

      • bressong
        05.04.2022

        6blades vs 12 blades is a good point, that's one of the charming points from J-37.

        1m vs 1.2m MDF, I don't know how the optical design can optimize this MDF.

        I read some comments on the internet, the j-11 is softer than J-37.

        do you know who is the designer of J-37?

        Reply

      • Rodion
        05.04.2022

        I suppose that comparision of J-11 and J-37 are comparisons of the quality of assembling of these lenses, not the quality of optical design. For example: I had J-11 that sharper than J-37A, but also I had J-37A that sharper thanJ-11.
        Also I think that the optical design of the J-37A was the result of the work of a team of engineers, not just one person. Although J-11 (Sonnar adaptation for soviet glass) designed andcalculated by Maltsev MD

        Reply

      • bressong
        05.04.2022

        so who is the sharpest from your best copy? J-11 or J37 ;)

        I think J-37 is definitely a successful design or engineering work.

        use less optical elements to achieve such performance, even in nowadays and modern 47M DSLR, it still can be used in full open way.

        and the funny thing I found, with J-37 to close some aperture, it doesn't improve the image quality too much, expct the depth field.

        Reply

      • Rodion
        05.04.2022

        Nonsense question. The best lens is the lens that you have.
        Not J-37 was a successful design, but Bertele's Sonnar variations are succesful optical design. And not only Jupiter lenses use with type of optical construction, but also Nikkor P 105/2.5 pre ai, some of old west german 135/2.8 lenses and others.

        Reply

  7. bressong
    05.04.2022

    on a 47M pixel full format DSLR, the lens perform well in center, but require a quote high shutter speed.

    in the sunshine ,it's easy to focus manually.

    Reply

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