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Any idea what lens this is?

  • 22-09-2014 2:34am
    #1
    ozmo
    Registered Users, Registered Users 2 Posts: 3,885 ✭✭✭


    Hi,

    Recently acquired this lens as part of a camera I got - Camera is fine - but has anyone any idea what it is?

    It certainly doesn't fit anything I currently have - and I'm not sure if its even complete - but its huge, heavy and looks impressive :)


    24o7cy1.jpg
    2igkig5.jpg

    Text on it says:

    ISCO - OPTIC GERMANY ULTRA - AV 200 - 300 mm f/3.5 MC



    Any ideas what it is/was ?

    “Roll it back”



Comments

  • #2
    Whammy!
    Registered Users, Registered Users 2 Posts: 285 ✭✭Whammy!


    It's a projector lens for a carousel slide projector system.

    Pretty sure that the lens have no aperture blades so there is no control over depth of field.


  • #3
    ozmo
    Registered Users, Registered Users 2 Posts: 3,885 ✭✭✭ozmo


    Whammy! wrote: »
    It's a projector lens for a carousel slide projector system.

    Pretty sure that the lens have no aperture blades so there is no control over depth of field.

    Really? - I would not have guessed that as the lens is so big!

    There is no aperture blades alright - just a rotate to zoom feature - magnification seems to be only about 2x or 3x.

    Thanks for the info.

    “Roll it back”



  • #4
    Whammy!
    Registered Users, Registered Users 2 Posts: 285 ✭✭Whammy!


    Here is a picture of lens from the same manufacturer attached to a slide projector.
    I-110-200.JPG

    This lens is a 110-200mm so it will be smaller but you get the idea. Obviously a portion of the lens is hidden within the projector.

    I've seen the odd one adapted to a dslr via a m42 mount. Not really any information online so I'd imagine it's very difficult.


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