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  1. John In Ireland

    Macro extension tubes

    Ah that's good, thanks for that Vernon. Hi Graham, do the Kenko ones have a metal or plastic body? I read somewhere that the little screws holding on the connection plates to the body screw into plastic and some folk have experienced the whole lens pulling away. Don't know if this is a common...
  2. John In Ireland

    Macro extension tubes

    Do yours have the electrical contacts Vernon to enable AF etc.?
  3. John In Ireland

    Macro extension tubes

    I have been dabbling with some cheap extension tubes I had for ages. I recently tried them with my Canon 100-400 and was quite happy with some results. I see now that some of these extension tubes come with electrical contacts that allow auto focus and aperture etc. Has anyone tried them and are...
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