I have a really dumb question about teleconverters...

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

  1. wgilles

    wgilles

    Apr 25, 2008
    NJ
    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. probably severe vignetting at wider angles, a loss of speed and some quality loss.
     
  3. wgilles

    wgilles

    Apr 25, 2008
    NJ
    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

    wgilles

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

    Chris101

    Feb 2, 2005
    Arizona
    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

    JimboC

    13
    Sep 4, 2008
    N.Ireland
    Tried this today with the same lens18-200,found it difficult to focus,and not impressed with the results
     
  8. wgilles

    wgilles

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