Digital SLR Lens Focal Length Calculator online

Discussion in 'Digital SLR' started by Paul V, Mar 30, 2005.

  1. Paul V

    Paul V Guest

    Paul V, Mar 30, 2005
    #1
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  2. Paul V

    John Francis Guest


    Good grief! Quite apart from the fact that the focal length doesn't change,
    do people *really* need help to perform multiplication by 1.5? (which is
    going to be close enough for all those 1.5 & 1.6 crop factor cameras).
     
    John Francis, Mar 30, 2005
    #2
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  3. Paul V

    Joe Makowiec Guest

    I'm sure it's pure public service and has nothing to do with those 'Buy
    this camera now' Amazon affiliate links.
     
    Joe Makowiec, Mar 30, 2005
    #3
  4. Paul V

    Alan Browne Guest

    Here's the equation. FLj = FLi

    Where Flj is the flocal lenght on a digital camera and FLi is the focal
    lenght on a 35mm camera. Incredicbly this equation works REGARDLESS of
    crop factor through the MAGIC of HIGH LEVEL mathematics.
     
    Alan Browne, Mar 30, 2005
    #4
  5. Randall Ainsworth, Mar 30, 2005
    #5
  6. Paul V

    Owamanga Guest

    But does it still work if I use a flash?

    :->
     
    Owamanga, Mar 30, 2005
    #6
  7. Paul V

    Darrell Guest

    If I use a flash, yes! Others here I am not sure ;)
     
    Darrell, Mar 30, 2005
    #7
  8. Paul V

    Paul V Guest

    Obviously if you're only looking at one lens and a 1.5 crop factor, this
    doesn't offer much time savings. But If you looking at lots of different
    lenses, primes and zooms, on different cameras (1.3x, 1.5x, 1.6x, etc.) it
    can save a lot of time. The page is intendend for camera COMPARISONS and
    to help people in making hypothetical buying desicions between lenses and
    different camera systems. Those who use if for such will find it pretty
    handy.
     
    Paul V, Apr 2, 2005
    #8
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