peter_andrew Posted September 8, 2005 Share Posted September 8, 2005 I recently bought a D70s. My 50mm does not work with it. At the dealer it wouldn't work on an new F80 either. Is the CPU in my lens too old or obsolete? The three salesmen were completely puzzled. It DOES work beautifully with my F90x. It is my favourite lens and I am very disappointed. What could it be? Any suggestions/comments would be grand! Pete Andrew Link to comment Share on other sites More sharing options...
john schroeder Posted September 8, 2005 Share Posted September 8, 2005 The only reason it would not work is if the aperature ring is not locked at f22. You would get an "FEE" error if the the ring is not locked. The N90s does not require the ring to be locked to work. Link to comment Share on other sites More sharing options...
ramon_v__california_ Posted September 8, 2005 Share Posted September 8, 2005 i will echo john's comment. Link to comment Share on other sites More sharing options...
peter_andrew Posted September 8, 2005 Author Share Posted September 8, 2005 Aperture ring was locked. I bought it from Henry's (Toronto), arguable Canada's highest volume dealer, and they had no explanations. Link to comment Share on other sites More sharing options...
frank_skomial Posted September 8, 2005 Share Posted September 8, 2005 It should work at any position of aperture ring, in Manual or Aperture priority modes. Link to comment Share on other sites More sharing options...
dmitriyk Posted September 8, 2005 Share Posted September 8, 2005 All AF-D lenses should work just fine on all D70s. My 50mm f/1.4 AF-D included. Try the lens on another body - perhaps, in a camera store - and the body with another AF-D lens. Track down the problem as much as you can and get in touch with Nikon support. Link to comment Share on other sites More sharing options...
dmitriyk Posted September 8, 2005 Share Posted September 8, 2005 <i>It should work at any position of aperture ring, in Manual or Aperture priority modes. </i><br> <br> Not so. Welcome to the world of Nikon dSLRs. Link to comment Share on other sites More sharing options...
Michael R Freeman Posted September 8, 2005 Share Posted September 8, 2005 Peter, Do you get a FEE error on the D70, even with the lens aperture set to minimum, or does it simply not work? If you are not getting a FEE indication then this is very strange indeed, as *ALL* Nikon AF lenses (regardless of age) are fully compatible with the D70 and F80. If you are getting a FEE error, then post a reply. I have one possible explanation for the strange behavior if that is the case. Link to comment Share on other sites More sharing options...
hayward Posted September 8, 2005 Share Posted September 8, 2005 Did you check the contacts (little brass studs) on the lens? Are they all there and clean? Link to comment Share on other sites More sharing options...
peter_andrew Posted September 8, 2005 Author Share Posted September 8, 2005 "FEE" does show up. The studs were checked and are clean. Link to comment Share on other sites More sharing options...
Michael R Freeman Posted September 8, 2005 Share Posted September 8, 2005 Peter, Okay - this MIGHT be the source of your problem. Look at the back of your lens aperture ring on the 50mm. There should be a little tab at the 3 o'clock position (#3 in photo below). Is this tab broken or missing? On the D70 (and F80) this little tab will depress the "minimum aperture detection switch" at about the 7 o'clock position of the camera lens mount. This is the only way that the D70 and F80 can detect if you have indeed locked the aperture at f/22 on a non-G lens (the F90x uses a different mechanism). If the tab is missing you will get a FEE warning even with the lens set to minimum aperture.<div></div> Link to comment Share on other sites More sharing options...
Michael R Freeman Posted September 8, 2005 Share Posted September 8, 2005 The above is a manual focus lens of course, but the 50mm AF-D will have the same tabs and couplings. Link to comment Share on other sites More sharing options...
Michael R Freeman Posted September 8, 2005 Share Posted September 8, 2005 Minimum aperture position detection switch on D70, F80, etc ...<div></div> Link to comment Share on other sites More sharing options...
todd peach seattle, washi Posted September 9, 2005 Share Posted September 9, 2005 Michael has nailed it, I think. I have a 35/2.0 AF I bought cheap; works fine on my N90s and F100, but it acts like yours on my D70. Little tab thingy is broken on the lens. I found that I could manually depress the switch on the camera and make it work, but that got old fast. My lens could probably be repaired, but I fear a professional repair would cost as much as the lens is worth. Link to comment Share on other sites More sharing options...
joseph_wisniewski Posted September 9, 2005 Share Posted September 9, 2005 I've built those little tabs before from scrap aluminum, held in place either with one screw or epoxy. Link to comment Share on other sites More sharing options...
gary_watson Posted September 9, 2005 Share Posted September 9, 2005 Armed with this, I'd demand a refund or exchange for a functioning lens from Henri's. They can be a bit thick about this sort thing but be persistent and emphatic that they sold you a duff lens. Link to comment Share on other sites More sharing options...
patricks Posted September 9, 2005 Share Posted September 9, 2005 just be aware, my 50/1.4 D wasn't a good performer on my D70. works great on a F100 but the bokeh on a D70 was horrible. Link to comment Share on other sites More sharing options...
fourfa Posted September 11, 2005 Share Posted September 11, 2005 <img src="http://www.fourfa.com/pics/tamron-tab.jpg"> <p> that's the tab Link to comment Share on other sites More sharing options...
fourfa Posted September 11, 2005 Share Posted September 11, 2005 I had this once, solution was to jam a piece of matchstick in the switch until I could get it repaired. Link to comment Share on other sites More sharing options...
peter_andrew Posted September 12, 2005 Author Share Posted September 12, 2005 Bingo! There is something snapped off exactly where you said it would be. I just have to figure out the best way to do it with what I have. I don't want to damage the digital body. Thanks gents! Link to comment Share on other sites More sharing options...
Michael R Freeman Posted September 12, 2005 Share Posted September 12, 2005 Sigh. One of the weak points of the plastic aperture rings on AF Nikkors I would guess, as it is not that uncommon to hear about this. I would imagine it is a much rarer occurance on older manual focus Nikkors with metal aperture rings, but then they won't meter on AF bodies that use this "minimum aperture detection" system anyway. Glad we found the source of your problem. Link to comment Share on other sites More sharing options...
Michael R Freeman Posted September 12, 2005 Share Posted September 12, 2005 On the other hand, given that it is plastic, you can probably superglue a small piece of hard plastic to the back of the ring if you are careful. Just don't glue your aperture ring to the lens! :-) Link to comment Share on other sites More sharing options...
peter_andrew Posted September 13, 2005 Author Share Posted September 13, 2005 Thank you so much for your help. This is my favourite website... by far! Pete Link to comment Share on other sites More sharing options...
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