Site Sponsors
Results 1 to 5 of 5

Thread: Using Nikon s Auto Focus Adjustment

  1. #1
    Workshop Member glenerrolrd's Avatar
    Join Date
    Nov 2007
    Location
    Jupiter FL/Atlanta GA
    Posts
    2,279
    Post Thanks / Like

    Using Nikon s Auto Focus Adjustment

    After setting up my brand new Nikon Df I mounted the new 58/1.4AF lens and started to test the camera calibration . For an AF lens I used the menu setting that allows you to adjust for each lens .

    +20 was not really enough to move the focus back so I used the default adjustment to add another +15 . It appears that you can calibrate the camera body as well as the lens . I think this maybe a problem going forward .

    The default value is also used to adjust the focus confirmation for manual lenses.

    The good news is that the screen appears to be dead on manual focusing using the screen works well .

    My guess is that the camera needs to be repaired or sent back to B&H . Am I missing something here ?

  2. #2
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: Using Nikon s Auto Focus Adjustment

    Roger,

    Are you saying your screen is good for manual with the +15 generic offset? If so, then it sounds like your sensor calibration for your body is off and should go back to Nikon. It is my understanding that the generic offset is NOT additive to the individual lens offsets, but will of course work for MF and other non-chipped or not-calibrated lenses.

    I do set individual calibration offsets for my MF PCE lenses as an example.
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  3. #3
    Workshop Member glenerrolrd's Avatar
    Join Date
    Nov 2007
    Location
    Jupiter FL/Atlanta GA
    Posts
    2,279
    Post Thanks / Like

    Re: Using Nikon s Auto Focus Adjustment

    The screen focusing isn t affected by the offset …its the focus point confirmation . The screen and the sensor appear to be calibrated correctly …if its sharp on the screen its in focus .

    I need to test the body with another lens .

    I didn t think the default was additive either but it appears to be .

  4. #4
    Workshop Member glenerrolrd's Avatar
    Join Date
    Nov 2007
    Location
    Jupiter FL/Atlanta GA
    Posts
    2,279
    Post Thanks / Like

    Re: Using Nikon s Auto Focus Adjustment

    Jack you are correct..the default is not additive . Looks like I can get close with a +15 adjustment . What is surprising is that the same lens on the D800E is dead on . Tomorrow I will try some additional lenses as well as my manual focus calibration . Thanks for the help.

    Shooting the Df next to the D800E ..is a very very tough comparison .

  5. #5
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: Using Nikon s Auto Focus Adjustment

    I definitely would not draw any conclusions with a single lens, especially one a softish as the 58/1.4 is wide open.
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •