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I have a really dumb question about teleconverters...

Discussion in 'General Discussion' started by wgilles, Sep 6, 2008.

  1. wgilles


    Apr 25, 2008
    I think I already know the answer, but I need to know for sure.

    I have a 18-200 VR Nikon lens. Can I use a teleconverter on it?

    On BH web site it says that it's not recommended for use with a lens wider than 50mm, what will happen if you do? If I was planning to only use it the teleconverter with the lens at the full 200mm, what will happen?

    Thanks for answering my dumb question in advance.
  2. the_traveler


    Mar 22, 2007
    Manhattan, NY
    Lewis Lorton
    probably severe vignetting at wider angles, a loss of speed and some quality loss.
  3. wgilles


    Apr 25, 2008
    Ok, and if I used it at the lenses 200mm focal length? Would it work or would it still have the vignette?
  4. You cannot mount the 18-200 VR on a Nikon TC because of the protruding back element of the lens and front elements of the TC.
  5. wgilles


    Apr 25, 2008
    Yeah, I was looking at one of the Kenko TCs
  6. Chris101


    Feb 2, 2005
    I don't have that lens, but I do have the 24-120 VR lens. If I attach my Kenko 1.4x teleconverter, the lens just doesn't focus at any setting.
  7. JimboC


    Sep 4, 2008
    Tried this today with the same lens18-200,found it difficult to focus,and not impressed with the results
  8. wgilles


    Apr 25, 2008
    Thanks, that answers my question. Thanks to everyone else too.
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