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  1. #11
    Banned

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    I have tried this but used a LCD screen magnifier when viewing in live view. If you have a lens with a focus ring that moves when it focuses then its easy to see if it moves when you hit the shutter button in AF ..If the lens has OS its best to turn the OS off and listen to see if the focus motor makes a noise when you swop from LV to AF
    Good idea whoever had it.
    The Tokina 24-200 needed +20 and more so I removed the mount and put in in the lathe and took 3 thou off the rear of the mount...all the connection fingers fell out requiring a tweezer rebuild !!! All fine now ..1 thou per 10 if you go this route.


    › See More: Simple auto-focus calibration for DSLRs with adjustable settings.
    Last edited by Love Nikon; 06-13-2015 at 09:42 AM.
    Thanks/Like 10 Gauge Thanks/liked this post
     



  2. #12
    Senior Member
    vindex1963's Avatar

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    I'm going to have to try this.
    D7000, D5100, D700
    Tamron 15-30, 24-70, 70-200 all f/2.8 VC
    Having fun ;-)

  3. #13
    Senior Member
    Elliot87's Avatar

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    Simple auto-focus calibration for DSLRs with adjustable settings.
    Quote Originally Posted by 10 Gauge View Post
    Just FYI, this person has an awesome video for what he has coined the "Dot Tune" method of AF Fine Tune adjusting, which is the same method as the OP has suggested.

    https://www.youtube.com/watch?v=7zE50jCUPhM
    This description box for this video suggests not setting the camera or lens to manual focus on Nikon bodies for the following reason and suggests setting back button focus instead.

    "*** Important Update for Nikon Owners ***
    After making this video it was discovered that on Nikon bodies the viewfinder focus confirmation range increases dramatically when the body or lens is changed from Autofocus (AF) to Manual Focus (MF). I believe this is becase Nikon wanted to make manual focusing easier and faster by increasing the range of focus that provides a confirmation. However for DotTune this behavior is undesirable because it increases the range of tune values, sometimes beyond the limits of the +20/-20 AF tune scale. Luckily there is an easy workaround, which I strongly advise Nikon owners to use:

    For step 3, do not set your NIkon body or lens to MF. Instead, configure your body for "back-button" focusing. Back-button focusing means that the Autofocus will not be engaged by a half-press of the shutter, which will allow you to perform steps 4 and 5 while leaving the body+lens still set to AF."
    Thanks/Like 10 Gauge, Blade Canyon, Bourbon Neat Thanks/liked this post
     
    D7100, D3200, F80
    Nikkor 200-500mm f/5.6 VR, Nikkor 55mm f/2.8 AI-s micro
    Tamron 70-300mm VC USD, Nikkor 35mm f/1.8G
    Nikkor 50mm f/1.8D, Nikkor 18-55mm f/3.5-5.6G EDII
    https://www.flickr.com/photos/eleaphotography/


  4. #14
    Banned

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    perhaps I did this back to front but I manually focused in LV using the magnifier on the LCD then engaged the AF and looked if it moved...????

  5. #15
    Matt Krei
    10 Gauge's Avatar

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    Quote Originally Posted by Elliot87 View Post
    This description box for this video suggests not setting the camera or lens to manual focus on Nikon bodies for the following reason and suggests setting back button focus instead.

    "*** Important Update for Nikon Owners ***
    After making this video it was discovered that on Nikon bodies the viewfinder focus confirmation range increases dramatically when the body or lens is changed from Autofocus (AF) to Manual Focus (MF). I believe this is becase Nikon wanted to make manual focusing easier and faster by increasing the range of focus that provides a confirmation. However for DotTune this behavior is undesirable because it increases the range of tune values, sometimes beyond the limits of the +20/-20 AF tune scale. Luckily there is an easy workaround, which I strongly advise Nikon owners to use:

    For step 3, do not set your NIkon body or lens to MF. Instead, configure your body for "back-button" focusing. Back-button focusing means that the Autofocus will not be engaged by a half-press of the shutter, which will allow you to perform steps 4 and 5 while leaving the body+lens still set to AF."
    Great now I need to retune all of my lenses. Thanks for pointing that out, completely missed it!!!
    Thanks/Like Blade Canyon, Elliot87, Bourbon Neat Thanks/liked this post
     
    Nikon D750
    *
    Tamron SP 24-70mm /2.8 DI VC USD
    *Nikon AF-S 50mm
    /1.8 G
    *Nikon AF 85mm
    /1.4 D
    *Tokina AT-X 100mm
    /2.8 PRO D Macro
    *Sigma 150‑600mm
    /5‑6.3 DG OS HSM Contemporary
    ---------------------------------------------------------------
    *3 x Yongnuo YN568EX Flashes + YN-622N Remotes

  6. #16
    Senior Member

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    Quote Originally Posted by Love Nikon View Post
    perhaps I did this back to front but I manually focused in LV using the magnifier on the LCD then engaged the AF and looked if it moved...????
    Seems just as valid. If it did move, you have to figure out which way so you can plug in the adjustment.

  7. #17
    Senior Member

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    Great now I need to retune all of my lenses. Thanks for pointing that out, completely missed it!!!
    Have you retuned your lenses yet? If you have, was there much difference after using the back-button focus?
    D7000
    Nikkor AF-S DX 18-105mm F3.5-5.6G ED VR
    Tamron SP 24-70 F2.8 Di VC USD
    Tamron SP 70-300mm F4-5.6 Di VC USD

  8. #18
    Senior Member

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    I tried the dot focus adjustment, and when i got a clear up + and down - limits where the dot was still and on without the brackets even part flashing, this gave me a range of about 11 steps, so i just split this and had 5 clear steps either side before being slightly out.
    I tried it after and seems spot on.

    P.

  9. #19
    Senior Member
    Bourbon Neat's Avatar

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    Yeah, I have not seen this information until just now after seeing Elliot's post. I went through all lenses and was mystified how I could ruin the procedure on all of them. Was not at all pleased with the results and went the Reikan FoCal route. Much better now.

    For anyone wondering, FoCal has the D7200 included now too.

    Quote Originally Posted by Elliot87 View Post
    This description box for this video suggests not setting the camera or lens to manual focus on Nikon bodies for the following reason and suggests setting back button focus instead.

  10. #20
    Matt Krei
    10 Gauge's Avatar

    Re: Simple auto-focus calibration for DSLRs with adjustable settings.

    I bought FoCal but actually seem to like my independent tune results better than what FoCal suggested after running the tests.
    Nikon D750
    *
    Tamron SP 24-70mm /2.8 DI VC USD
    *Nikon AF-S 50mm
    /1.8 G
    *Nikon AF 85mm
    /1.4 D
    *Tokina AT-X 100mm
    /2.8 PRO D Macro
    *Sigma 150‑600mm
    /5‑6.3 DG OS HSM Contemporary
    ---------------------------------------------------------------
    *3 x Yongnuo YN568EX Flashes + YN-622N Remotes





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