"A" distance in eos 5d
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  1. "A" distance in eos 5d

    #1

    The "a" distance in Camera Settings is for de canon 5d 53,5mm in my opinion this is wrong.My distance is 44,5.
    I wait your opinions.
    Tanks.
    Excuse me for my english.

  2. Re: "A" distance in eos 5d

    #2
    bigwade's Avatar
    Join Date: Apr 2008
    Location: Utrecht, The Netherlands
    Posts: 67

    Hi,
    I've just read http://nodalninja.com/forum/index.php?topic=349.0
    I am using this methode for a while.
    On the NN site 53mm was standard, it is correct !
    With the def. NN5, a 1/2mm is/can be added, so for a 5D it's 53,5 or 54mm.
    Sure not 44 mm.
    Mind you, I am using the supplied camera mount, the small block.
    With this set up @44mm you will get a BIG SAW in Nadir........

    @josejavier: do you use the camera mount/block ?

    @Bill why did you change a lot of underrail values ??
    Most (Canon) values did work rather well, not anymore.
    And Hey, the NN3 and NN5 have different values, for sure, at least mine.
    Have Fun !
  3. Re: "A" distance in eos 5d

    #3

    Quote Originally Posted by josejavier View Post
    The "a" distance in Camera Settings is for de canon 5d 53,5mm in my opinion this is wrong.My distance is 44,5.
    I suggest you do a quick cross check using a different method. It takes only a minute or two to check the horizontal position by holding a plumb line in front of the lens to align the visible entrance pupil with the centre of the rotator knob. Level the head first, though. Details in http://www.johnhpanos.com/epcalib.htm.

    John

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