Componon-S 50mm f2.8 on A7 ?

Discussion in 'Adapted Lenses' started by tokayto, Dec 27, 2014.

  1. tokayto

    tokayto TalkEmount Regular

    May 25, 2014

    I just got this lens for 18$ on a second hand shop( i am not sure what it called in English) Any exprience with this lens? Which adapter do i need to use it on my A7 ? Do you know anything about the quality of this lens?

    Here some pics how it looks like



  2. davect01

    davect01 Super Moderator Subscribing Member

    Aug 20, 2011
    Fountain Hills, AZ
    Never heard of it. Anyone?
  3. SpaceManSpiff

    SpaceManSpiff TalkEmount Top Veteran

    Dec 13, 2013
    Tucson, AZ
    Hi there Tokyato,

    That lens looks like a Schneider Kreuznach lens from an enlarger. The mount looks like it *might* be a m39 (Leica screw mount) mount. As there is no focusing mechanism on the lens, you might need m39 extension tubes to get it focus (it will still be fixed focus), or try to adapt something that uses a m39 helicoid focusing mechanism.

    (It could also be an m42 mount --to verify just measure the diameter of the mount threads, and m39 will be 39mm and the m42 would be 42mm across).

    HTH, Eric
  4. tokayto

    tokayto TalkEmount Regular

    May 25, 2014
    Thanks for the info Eric. Is there any samples ? I mean what kind of pics i can shoot with this lens? Macro shots right? Do you know anything about the quality? Sharpness?

    Can you give me a link which m39 adapter i need? I found many different adapters. I cant be sure if i am looking for the right one.
  5. SpaceManSpiff

    SpaceManSpiff TalkEmount Top Veteran

    Dec 13, 2013
    Tucson, AZ
    Sure Tokayto, no problem.


    The couple of threads I found were about using the lens for macro work (like the sample above).

    here is some info from their website

    This thread covers some of aspects of this lens, but gets muddled with the discussion of the Minolta mount lens.

    If m39, something like this

    If m42, something like this.

    • Like Like x 1
  6. xXx1

    xXx1 TalkEmount All-Pro

    Jan 15, 2013
    Componon S are very good quality enlarging lenses. You can use it as a camera lens if you put a helicoid on it. Many people use them as a macro lens and they are optically as good as good macro lenses. Expensive too.
    • Like Like x 2
  7. tokayto

    tokayto TalkEmount Regular

    May 25, 2014
    Thank you so much. It was really helpful.

    Expensive ? I got it for 18 $. I guess i made a good deal. I think that i will use it as a macro lens too. It's gonna be fun :) 
    • Like Like x 1
  8. addieleman

    addieleman Passionate amateur Subscribing Member

    Nov 13, 2012
    Ad Dieleman
    I've got one of these, they're offered very cheaply sometimes when someone cleans up his attic and sells off darkroom equipment; mine cost € 20 but I had to take the accompanying enlarger and darkroom timer home :) . The mount is M39 and the image quality in the macro region is excellent. Mark Goodman at has tested it and thinks quite favourably about it. Here are some test shots at about 3:1 if I remember correctly. The lens was mounted on the Minolta Auto Bellows I with a Minolta MD -> M39 adapter for normal mounting and a Minolta reversal ring to 55mm and a 55mm -> 43mm step up ring for reverse mounting. I'd advise using reverse mounting when used on a bellows, image quality is much better that way.

    Concerning adapters, you can go for a bellows to get from about lifesize to real macro reproduction ratios, up to 3:1 on most bellows units. Alternatively, you can look for an adapter from E-mount to M39 with a focussing helicoid, or one to M42 and an additional M42-M39 adapter ring if an M39 unit isn't available. You may want to add additional M39 extension tubes. I have such a helicoid but there's no real reason to go through the hassle when you can use a 50mm macro lens with the same image quality in the close-up region (say 1:10 to 1:2).
    • Like Like x 3
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