DoF on the Canon 500mm f/4.0L

cmr164cmr164 Registered Users Posts: 1,542 Major grins
edited February 11, 2005 in Cameras
Note that at close focus (4.5M 14.8') the DoF does not expand much even at f/32
Charles Richmond IT & Security Consultant
Operating System Design, Drivers, Software
Villa Del Rio II, Talamban, Pit-os, Cebu, Ph

Comments

  • dkappdkapp Registered Users Posts: 985 Major grins
    edited February 10, 2005
    f/4 looks real tight. That will show any mistakes you may make. I would imagine it will take some practice to get the best out of it.

    I can't wait to see some shots from this monster.

    Dave
    http://analog.lifekapptured.com (photoblog)
    http://www.lifekapptured.com (gallery)
  • cmr164cmr164 Registered Users Posts: 1,542 Major grins
    edited February 10, 2005
    dkapp wrote:
    f/4 looks real tight. That will show any mistakes you may make. I would imagine it will take some practice to get the best out of it.

    I can't wait to see some shots from this monster.

    Dave
    Well hopefully Rutt and Jimf will join me Fri Feb 11 far some walking around pictures in Davis sq or Harvard Sq. Any other MA based grinners want to join the fun?
    Charles Richmond IT & Security Consultant
    Operating System Design, Drivers, Software
    Villa Del Rio II, Talamban, Pit-os, Cebu, Ph
  • BrianJRBrianJR Registered Users Posts: 6 Beginner grinner
    edited February 11, 2005
    Very interesting chart. Did that come with your lens, or did you find it on the internet? Mind sharing the link??mwink.gif

    Edit: I just noticed that at f/4 and infinity focus, the near distance is 1.7km!!! I can't believe that is correct, is it?
  • wxwaxwxwax Registered Users Posts: 15,471 Major grins
    edited February 11, 2005
    cmr164 wrote:
    Well hopefully Rutt and Jimf will join me Fri Feb 11 far some walking around pictures in Davis sq or Harvard Sq. Any other MA based grinners want to join the fun?
    There's a Harvard Square in the Philippines? What a coincidence.
    Sid.
    Catapultam habeo. Nisi pecuniam omnem mihi dabis, ad caput tuum saxum immane mittam
    http://www.mcneel.com/users/jb/foghorn/ill_shut_up.au
  • cmr164cmr164 Registered Users Posts: 1,542 Major grins
    edited February 11, 2005
    BrianJR wrote:
    Very interesting chart. Did that come with your lens, or did you find it on the internet? Mind sharing the link??mwink.gif

    Edit: I just noticed that at f/4 and infinity focus, the near distance is 1.7km!!! I can't believe that is correct, is it?
    The Canon Museum is just plain cool! The write ups on every EF lens ever is here.

    Bear in mind that they are not using a hyperfocal distance. Figure about a 2 to 1 ratio for DoF in front of vs behind the point of focus. By setting the 'D' at infinity they are tossing the bulk of the DoF out past infinity
    Charles Richmond IT & Security Consultant
    Operating System Design, Drivers, Software
    Villa Del Rio II, Talamban, Pit-os, Cebu, Ph
  • BrianJRBrianJR Registered Users Posts: 6 Beginner grinner
    edited February 11, 2005
    Wow, I visit the museum all the time, but I'd never seen those charts before. Thanks! :)
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