Film lens on DSLR?

Discussion in '35mm Cameras' started by ibm_97, Dec 8, 2004.

  1. ibm_97

    ibm_97 Guest


    My friend wants to give DSLR (Canon 300D) a try. He worries that his
    film lens (EF) will not work or have problems on 300D. Did anyone have
    similar experience?

    The following also botheres me:

    The 1.6x focal length multiplier means that the outer 40% (approx) of a
    standard EF lens is not used

    ibm_97, Dec 8, 2004
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  2. ibm_97

    Paul Bielec Guest

    The EF lenses work without any problem on my 300D. Basically, there is no
    film EF lens.
    On the other hand, there are digital EF lenses. The EF-S lenses will not
    work properly on a film camera becasue they coverage is smaller than a non
    EF-S lens.
    So any EF-S lens he'd buy will not fit his film camera.
    The 1.6x multiplier is not a problem but he will have to buy a new wide
    angle lens if he needs one.
    Paul Bielec, Dec 8, 2004
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  3. ibm_97

    Skip M Guest

    All of Canon's EF mount lenses work just fine on the RebelD. So do most of
    the aftermarket mfrs lenses, the only exception MAY be those older ones from
    Since lenses generally soften out at the edges, not utilizing that part of
    the lens usually presents little problem. It's just when your 17-35
    suddenly becomes a 28-60 that the 1.6x crop presents a problem...
    Skip M, Dec 9, 2004
  4. My friend wants to give DSLR (Canon 300D) a try. He worries that his
    Some early Sigma lenses won't work properly. All Canon lenses will work.
    The digital sensor is smaller than a piece of film. So?
    Michael A. Covington, Dec 9, 2004
  5. ibm_97

    Chris Brown Guest

    That's incorrect - 40% less of the *image circle* is used *that on a 35mm
    camera*. 35mm doesn't use all of the image circle, a 300D uses slightly less
    of it.

    Here's a better way to think about it. The 300D is a smaller format than
    35mm, so what constitutes "wide angle", "telephoto", and "standard" are
    different, just as if you'd gone from 645 to 35mm.

    For a 300D, the 35mm focal length is "standard", a 50mm is a short
    telephoto, and so on.
    Chris Brown, Dec 9, 2004
  6. ibm_97

    Mr Jessop Guest

    The outer edges of a lens are usually inferior to the centre area. You
    usually get best quality when using f8 or f11. A zoom lens that has a
    maximum aperture of 2.8 is big heavy and expensive. Using a wider imaging
    circle means building extra large so that the area that is covered is flat.
    The extra curve at the edge of a lense is what does them in. Aspherical
    lenses are a big deal. Using a sensor that requires less covering power
    than 35mm film is a boon. That is while digital lenses are cheap. They are
    basically lense designs that would be considered utterly shit by normal
    Mr Jessop, Dec 9, 2004
  7. My friend wants to give DSLR (Canon 300D) a try. He worries that his
    The lens will work fine.

    As to the 1.6 multiplication factor, take a look through the archives

    Dr. Joel M. Hoffman, Jan 3, 2005
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