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what shim, adapter or rings for CS lens to C adapter?

Discussion in 'Adapted Lenses' started by pcake, May 16, 2012.

  1. pcake

    pcake Mu-43 Regular

    187
    May 3, 2010
    i got a lens that doesn't seem to focus at distances, and the guy who sold it to me tells me it's a CS lens but doesn't know much about it. the adapter i'm using on my camera is a standard C to m4/3 adapter. is there something i could add to the mix - a second adapter, rings or a shim - to make this work?
     
  2. songs2001

    songs2001 Mu-43 Top Veteran

    693
    Jul 8, 2011
    You will need to grind the adapter or the lens itself.
     
  3. pcake

    pcake Mu-43 Regular

    187
    May 3, 2010
    huh... why grind it? the lens fits the adapter and the ring i have just fine - it just that when i use it i can take pics about... er... half an inch away.

    taken at f/1.3 in a dark room at less than an inch away, only the monster's teeth are in focus :D
     

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  4. songs2001

    songs2001 Mu-43 Top Veteran

    693
    Jul 8, 2011
    The distance between the sensor and the lens is too long, basically what you made is a macro tube lens, you need to make that distance a lot shorter. Shims will just make your focal point closer.
     
  5. pcake

    pcake Mu-43 Regular

    187
    May 3, 2010
    ah, thanks!