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  1. #21
    Senior Member
    Sandpatch's Avatar

    Re: Nikon NY Repair Center

    Like Whiskeyman, I used Nikon's NY repair center with good success years ago when the shutter mechanism failed on my D5100. The worst part of the return was dealing with the Nikon service representative on the phone, who read through an endless troubleshooting script with me while the cause of the problem was clear.


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  2. #22
    Staff
    Super Mod
    hark's Avatar

    Re: Nikon NY Repair Center

    Nikon NY Repair Center
    Before I went out to do more testing, I changed the value of the AF tuning to +15. *sigh* That definitely didn't help. Below is a photo from that outing. It was overcast so not thrilled my ISO hit the max of 4000.

    Then yesterday I recalibrated the AF tuning and landed on +7 but haven't yet had a chance to test it.

    Nikon NY Repair Center-_dsc2193-low-res.jpg
    Thanks/Like BeegRhob, Sandpatch Thanks/liked this post
     
    Cindy - D750, D500, D7200
    My 2021 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  3. #23
    Senior Member

    Re: Nikon NY Repair Center

    If you're getting these results after calibration then something is amiss with the lens. I'm not seeing much of anything sharp on these so I'm thinking it's not a front/back focus issue.
    Thanks/Like hark Thanks/liked this post
     
    Jake
    (formerly backdoorhippie)

  4. #24
    Staff
    Super Mod
    hark's Avatar

    Re: Nikon NY Repair Center

    Quote Originally Posted by BackdoorArts View Post
    If you're getting these results after calibration then something is amiss with the lens. I'm not seeing much of anything sharp on these so I'm thinking it's not a front/back focus issue.
    I'm definitely leaning towards the lens requiring repair but still have another test to try. I want to use the lens alone without the teleconverter and see how it performs. What I noticed with the 1.7x tele is the lens is very slow to AF when it's in the mid-range. Once the focus moves closer to infinity, the speed of AF picks up. So it might very well be a lens repair issue, but I want to test it alone first to see if the problem persists. It seems the results I'm getting with the teleconverter vary greatly. And I'll test it with the 1.4x tele, too. Thanks for your input, Jake!
    Cindy - D750, D500, D7200
    My 2021 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  5. #25
    Senior Member

    Re: Nikon NY Repair Center

    Quote Originally Posted by hark View Post
    I'm definitely leaning towards the lens requiring repair but still have another test to try. I want to use the lens alone without the teleconverter and see how it performs. What I noticed with the 1.7x tele is the lens is very slow to AF when it's in the mid-range. Once the focus moves closer to infinity, the speed of AF picks up. So it might very well be a lens repair issue, but I want to test it alone first to see if the problem persists. It seems the results I'm getting with the teleconverter vary greatly. And I'll test it with the 1.4x tele, too. Thanks for your input, Jake!
    Didn't notice that. I have given up on the 1.7x TCii. Everything I get with it on my 300mm is lousy. I'd rather crop more and use AI resizing if necessary. The 1.4x TCii is much better, but it's gotten less use since I bought the 500mm.
    Thanks/Like hark Thanks/liked this post
     
    Jake
    (formerly backdoorhippie)

  6. #26
    Staff
    Super Mod
    hark's Avatar

    Re: Nikon NY Repair Center

    Nikon NY Repair Center
    I gave my 300mm f/4 PF absolutely every chance to perform, but in the end it just couldn't AF well. Most images missed focus while the rest were very soft. I even switched to my 1.4x TC - but no better with that.

    So today I went out with my 300mm f/4 non-VR lens coupled with my 1.4x TC. This lens makes noise while auto focusing, but it still has a little life left in it. Wound up not being able to capture some images simply because the lens couldn't achieve AF on a moving target. And that was a shame. Two crows decided to dive-bomb this hawk - tried but failed to focus. Eventually the hawk had enough and took off after them. Then it became very quiet. No idea whether or not the hawk caught up with them.

    Nikon NY Repair Center-_dsc2404-low-res.jpg
    Cindy - D750, D500, D7200
    My 2021 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  7. #27
    Senior Member
    Woodyg3's Avatar

    Re: Nikon NY Repair Center

    Cindy, you gotta' get that lens fixed. It's no fun missing shots! I have my D500 at Nikon NY right now for repair. They will give you an estimate before any repairs are started. Just do it!
    Thanks/Like BeegRhob Thanks/liked this post
     
    Woody Green

    Clear Eyes, Full Hearts, Can't Lose

    D500, D7200, D7100, D70

  8. #28
    Staff
    Super Mod
    hark's Avatar

    Re: Nikon NY Repair Center

    Quote Originally Posted by Woodyg3 View Post
    Cindy, you gotta' get that lens fixed. It's no fun missing shots! I have my D500 at Nikon NY right now for repair. They will give you an estimate before any repairs are started. Just do it!
    I know, Woody! It's been since the end of January or beginning of February since the lens worked properly. So it's already been a very long time trying to figure out what was wrong. If you remember, initially I thought the problem was the 1.7x TC. But after exhaustive testing, much to my surprise it is the lens.

    I still have the 300mm f/4 non-VR lens, but that one makes noise when focusing (which it didn't used to do). For now I will just make due with it. But as for the Nikon Repair Center, no doubt they will be going on a holiday vacation very soon so not sure I'd get my lens returned until mid-January if I sent it now. Lol. At least I should call and ask.
    Cindy - D750, D500, D7200
    My 2021 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  9. #29
    Senior Member
    Whiskeyman's Avatar

    Re: Nikon NY Repair Center

    Cindy, I may have missed it above, but what technique/product are you using to test the focus on your lens?

    I've used Reikan FoCal Pro and the "eyeball technique" and found that a slight difference in lighting can have an efffect upon my results.

    (To increase my frustration, I've asked Santa Claus for a Lensalign focus calibration kit. If I get it, it'll likely give me a third set of results that don't match the others!)

    WM
    Best Answers Danno voted best answer for this post
     
    "If you think that things can't get any worse, you've never been in the military." - Anonymous

  10. #30
    Staff
    Super Mod
    hark's Avatar

    Re: Nikon NY Repair Center

    Quote Originally Posted by Whiskeyman View Post
    Cindy, I may have missed it above, but what technique/product are you using to test the focus on your lens?

    I've used Reikan FoCal Pro and the "eyeball technique" and found that a slight difference in lighting can have an efffect upon my results.

    (To increase my frustration, I've asked Santa Claus for a Lensalign focus calibration kit. If I get it, it'll likely give me a third set of results that don't match the others!)

    WM
    The D500 has its own ability to automatically adjust/tune the AF (done thru Live View). I printed out the target image that Steve Perry offers and taped it up in a bright area. And I did the adjustment like he suggested - by taking multiple readings then narrowing down the results (and used a tripod). The thing is many times absolutely nothing is in sharp focus. So it isn't just front or back focusing. It just isn't achieving focus even when the green dot lights up inside the viewfinder.
    Cindy - D750, D500, D7200
    My 2021 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci







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