Question about Nikon TC-17E II for AF-S, AF-I 1.7x Lens Converter
I bought a Nikon 70-200mm f/2.8 lens and Nikon TC-17E II (both new) this week for use with my Nikon D300.
Put the Nikon 70-200mm on my D300, it works beautifully. Couple the TC-17E II with my Nikon 105mm, again a beautiful combination with lovely sharp macro photos (but manual focus as autofocus does not work with the 105mm).
But put the TC-17E II and 70-200mm and autofocus only sporadically works. Most of the time I get chattering over close focal lengths...sometimes it will focus, but not up to my expectation given I have heard the TC-17E II was designed espcially for the lens. I am not convinced it is lack of light or contrast causing this problem.
Any suggestions about what I can try to remedy this problem. I am currently using the teleconverter with manual focus.
I have a 70-200 and a TC14EII which work perfect. Put my TC17EII on and it is hit and miss. Move the body slightly one way, VR and focus are fine. Move the body the other way and nothing. My firm belief is that it is the design of the TC 17 which is causing the problem. The contacts between the body (D300) and TC are not aligned properly. They are off alignment just enough to cause this issue. Tell me I am nuts. Any movement, no matter how minute, will cause a malfunction. All my gear is basically new and I have had no problems other than this issue. I think that this TC is going back where it came from.
Posted on May 14, 2010
You may have a dirty contact on the tc cpu pins. Try cleaning the pins with a clean pencil eraser or some methanol. You could also have a loose connection between the tc and the lens or body. Try applying a rotational force in both directions...see if you notice any change in behavior. If you have a local shop, see if you can try another copy on your lens.
The 17e may have slow-ish performance in low light, but it should still be usable. If neither of these issues is apparent then it may need to be exchanged or serviced.
Posted on Jan 25, 2008
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