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  • #262654

    Some may have heard me moaning about my many out-of-focus shots with my 500mm lens during the critique session. I was clueless why the photos are mostly OOF – I have already eliminated those culprits such as AF mode, AF type, subject motion ( I took shots of a big rock & still turned out OOF :cry: !) , camera shake ( there were spots in the picture that were in focus), so what else have I not done?

    As I studied my OOF shots last night, I saw "AF Finetune = 0" as part of the EXIF. I surfed the internet on D300 AF Finetune and finally struck gold. The search brouught many links which described my problem exactly.

    http://www.flickr.com/groups/nikon_d300_users/discuss/72157603567131829
    http://photomatter.com/Reviews/NikonD300b.html
    http://www.focustestchart.com/chart.html

    Rather than following their steps to do the AF finetuning, I sent all my lens to Nikon service center today since they are still under warranty.

    D300 has a function that you can finetune the AF from -20 to 0 to +20. With my 500mm plus TC1.4x, the finetune figure turned up to +17. :shocked: I guess this is the reason why AF doesnt work on TC1.7x or 2x – no more space to finetune??

    Tested my lens today – AF works MUCH better now :cheers: ..i might still tweaked it a bit as I do more field tests.

    Just sharing the experience – probably this is kindergarten stuff, but then, I only have an idiot-proof degree :P

    #287302
    Profile photo of stingReystingRey
    Spectator

    Good to know you find the way.
    If I remember correctly, I once mentioned it to you. :nyah nyah:

    #287304

    well, if i remember it correctly too, you might have said something, but my immediate problem then was carrying the lens, not photographing the birds… :nyah nyah: :D

    p/s thanks! any other things that i might have missed out hearing? :kow tow:

    Good to know you find the way.
    If I remember correctly, I once mentioned it to you. :nyah nyah:

    #287315
    Profile photo of hanYeo, Wee Han
    Spectator

    Haha! Good for you and ready to go for FH Peacefuldove! :razz:

    Cheers

    Han

    #287318

    PP,

    Great that fix your problem. Now it really will be the person behind the camera and not ht lens in front of the camera that matters. :D :D

    Cheers,
    SC

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