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Archive 2017 · What's wrong with my D4 and lenses??

  
 
lionsfan54
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p.1 #1 · p.1 #1 · What's wrong with my D4 and lenses??


Ok... here's the mystery. I have a pair of D4 bodies and the two lenses in question are a 70-200 VRII and a 400mm AF-I 2.8

On one of bodies, the 400mm aperture wouldn't open up (yes, I checked the "tab" on the ring). "No big deal, I'll just my other body all the time on that lens". Well, yesterday, I was swapping lenses with a 24-70 and then, all of a sudden, this behavior started happening on my OTHER D4 body! And, even more strange, the previously, non working D4 body started to work fine with the 400mm. And, even more strange than that, the almost brand new 70-200 VRII started to also not work (aperture stuck closed) on the same D4 body. On that body, but 24-70 2.8 works just fine. In fact, my 24-70 works fine on both bodies. I'm beyond stumped.

To summarize

70-200 - did work on body 1, stopped working, now only works on body 2
400 - never worked on body 2, now works on body 2 and doesn't work on body 1
24-70 - works/worked fine on both bodies

Help!!



Aug 20, 2017 at 08:30 AM
lionsfan54
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p.1 #2 · p.1 #2 · What's wrong with my D4 and lenses??


ok, mystery solved... through process of elimination and comparison, there was a bent tab on the body that wasn't opening the aperture on SOME lenses. I can only speculate that in my sloppy 400mm mount/dismount I bent the one back (yay!) and bent the other one broken! Pic coming....


Aug 20, 2017 at 08:49 AM
Vinnie_VdB
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p.1 #3 · p.1 #3 · What's wrong with my D4 and lenses??


Had once a similar issue. Body & lens and all was good. I put a TC on it and bam, same problem, aperture didn't open (complete). Only found out at home that a little notch on the TC was flat rather than standing on a roughly 45°. Did bend it back and all went well ever since


Aug 20, 2017 at 09:30 AM
lionsfan54
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p.1 #4 · p.1 #4 · What's wrong with my D4 and lenses??


pic of bent tab

Edited on Aug 22, 2017 at 08:50 AM · View previous versions



Aug 20, 2017 at 11:45 AM
Lee Saxon
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p.1 #5 · p.1 #5 · What's wrong with my D4 and lenses??


It's weird ever since the D850 rumors solidified my D750 images have gotten much lower quality...


Aug 21, 2017 at 01:28 PM
runamuck
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p.1 #6 · p.1 #6 · What's wrong with my D4 and lenses??


lionsfan54 wrote:
pic of bent tab


Linky say: Update account to enable 3rd party hosting.



Aug 21, 2017 at 07:56 PM
lionsfan54
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p.1 #7 · p.1 #7 · What's wrong with my D4 and lenses??


try this?


Aug 22, 2017 at 08:49 AM





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