Extension Tubes

Discussion in 'Australia Photography' started by NickC, Jan 31, 2008.

  1. NickC

    NickC Guest

    I'd like to try some macro photography and thought I'd get a set of
    extension tubes. There seems to be a huge difference in price though,
    from about $20 on eBay up to $160 for a Kenko DG set. On the face of
    it, the difference is the Kenko allows autofocus, but the cheap sets
    don't provide the electrical connections so are manual focus only.

    For macro work, don't you tend to use manual focus anyway given that
    the DoF is so narrow? I'm having a hard time convincing myself to pay
    an extra $140 for a tube of air. Especially since the lens cost less
    than that (Canon 50mm f1.8).
     
    NickC, Jan 31, 2008
    #1
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  2. NickC

    Pete D Guest

    Even on my good macro lenses I prefer manual focus.
     
    Pete D, Jan 31, 2008
    #2
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  3. NickC

    PixelPix Guest

    Without electronics how do you control the aperture on the 50/1.8?
     
    PixelPix, Jan 31, 2008
    #3
  4. NickC

    Pete D Guest

    No aperture ring, damn what a pain, my 50mm F1.4 has aperture ring, mind you
    I have the Kenko extension ring set with all the electronics connected
    through.
     
    Pete D, Jan 31, 2008
    #4
  5. NickC

    Troy Piggins Guest

    * Pete D is quoted & my replies are inline below :
    He means the tubes don't have electronics, so the camera can't
    control the aperture on the lens.
     
    Troy Piggins, Jan 31, 2008
    #5
  6. NickC

    Pete D Guest


    Yes but if the lens had an aperture ring you could just set it manually with
    the ring........
     
    Pete D, Jan 31, 2008
    #6
  7. NickC

    Troy Piggins Guest

    * Pete D is quoted & my replies are inline below :
    Aah, I see

    </redface>
     
    Troy Piggins, Jan 31, 2008
    #7
  8. NickC

    Pete D Guest


    Thats cool, this is where the older cheap manual lenses can really be great.

    Pete
     
    Pete D, Jan 31, 2008
    #8
  9. NickC

    NickC Guest

    PixelPix wrote on 31 Jan 2008:
    I forgot about the aperture. It's odd they manage to sell these
    things. None of the lenses I own have manual aperture. I haven't seen
    an L close up, maybe they have manual aperture, but you wouldn't think
    L owners would be interested in these cheap extensions.

    Thanks for the other replies too.
     
    NickC, Jan 31, 2008
    #9
  10. NickC

    Noons Guest


    Hehehe! A common problem with newer lenses.
    This:
    http://wizofoz2k.deviantart.com/art/just-peachy-72779947
    was taken with a very old Nikkor 20/3.5 on a plain vanilla
    K1 tube, dating back to the 60s. The only thing new is
    the camera, a D80. The perspective on these extreme
    wide angle close-up shots is quite nice and the dof
    almost acceptable.

    I wonder if you'd be able to do the same on the Canon
    with a Can-2-Nik converter?
     
    Noons, Jan 31, 2008
    #10
  11. NickC

    Mr.T Guest

    Why not? You can with quite a few other lenses as well.
    But then the cost of the lens plus adapter will probably be more than the
    Auto tubes.

    MrT.
     
    Mr.T, Feb 1, 2008
    #11
  12. NickC

    Smeeegles Guest

    L lenses are not manual aperture either.
    You are best off buying a screw mount takumar 50mm f1.4 or something
    similar then an m42 to eos mount off fleabay for a song and use that
    lens which has superb optics regardless.
     
    Smeeegles, Feb 3, 2008
    #12
  13. NickC

    k Guest

    | On Feb 1, 8:15 am, NickC <>
    | wrote:
    |
    | > > Without electronics how do you control the aperture on the 50/1.8?
    | >
    | > I forgot about the aperture. It's odd they manage to sell these
    | > things. None of the lenses I own have manual aperture. I haven't seen
    | > an L close up, maybe they have manual aperture, but you wouldn't think
    | > L owners would be interested in these cheap extensions.
    |
    |
    | Hehehe! A common problem with newer lenses.
    | This:
    | http://wizofoz2k.deviantart.com/art/just-peachy-72779947
    | was taken with a very old Nikkor 20/3.5 on a plain vanilla
    | K1 tube, dating back to the 60s. The only thing new is
    | the camera, a D80. The perspective on these extreme
    | wide angle close-up shots is quite nice and the dof
    | almost acceptable.
    |
    | I wonder if you'd be able to do the same on the Canon
    | with a Can-2-Nik converter?


    Thanks:
    we really needed you to mention this, just in case
    we had forgotten how to read the news by
    ourselves...

    (next moron, please...)
     
    k, Feb 5, 2008
    #13
  14. NickC

    Noons Guest


    Whassamatter, k?
    Your online pseudo marketing
    and ratshit news announcements
    going astray?

    Fuckwit...
     
    Noons, Feb 6, 2008
    #14
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