Differnce in zoom/focal length?

Discussion in 'Photography Equipment & Products' started by Seekwence, Jun 9, 2010.

  1. Seekwence

    Seekwence TPF Noob!

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    I have started off with both the Nikon 15-55 VR and 55-200 VR lenses for my d3000. Recently I purchased the Sigma 18-200 OS and have noticed that the 200mm focal length on the Nikon is noticeably "longer" than the Sigma at 200mm. It's not a big deal, but I am a little confused.

    Sorry, I don't have any sample shots to post right now...
     
  2. icassell

    icassell TPF Noob!

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    I don't know those particular lenses, but this is a known issue with many 3rd party as well as OEM lenses -- they're not always exactly as claimed.
     

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