Canon EOS 28-70 kit lens MACRO MOD

Discussion in '35mm Cameras and Accessories' started by j-dogg, Feb 21, 2012.

  1. j-dogg

    j-dogg Subscriber

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    I've posted this on /p/ and photographyonthe.net and figured it was worth posting here.

    I've had one of these laying around that I meant to fix for a while. These are the little-known but much-respected kit lenses, the EOS 28-70 f3.5-4.5 that came on the EOS 650. They're about 100-ish dollars on flea-bay and broken copies for MUCH less. Once in a blue moon they pop up on here in EOS 650 kits with Mk.I 50mm's and 70-210 f4's. You will want a broken copy with a front element assembly separation.

    The front half of the lens, the focusing part, had separated in a drop apparently and hearing that the MTF charts were only bested by the 28-70 f2.8L I figured I'd keep it and fix it up.

    So it sat for a while, a LONG while, and tonight I pulled it out to dust it off and maybe order the part to fix it, when I mounted it on my camera to see if the aperture still worked and everything I discovered that the damn thing makes for an excellent macro close-up lens.

    If memory serves me correct, people have been doing this with 35-80 kit lenses. But I never heard of it with a 28-70 kit from a 1988 EOS 650.

    Samples below @ 28 and 50mm. From what I've shot so far I am very impressed with the level of detail and the background blur. Stopping down adds a significant amount of DoF, especially f11 and above. Also shots of what the whole thing looks like bolted up to my EOS 5d

    28mm
    [​IMG]

    50mm
    [​IMG]
     

    Attached Files:

  2. CGW

    CGW Member

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    Funny, the Nikon 28-70/3.5-4.5D is a sleeper, too. Not sure a fall would improve it.
     
  3. altim

    altim Member

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    So to clarify, you remove the front element from the 28-70 and you get ultra close focus? What is the battery banded to the lens for?
     
  4. j-dogg

    j-dogg Subscriber

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    yep. Battery is because the grip on my copy is loose and coming off

    Focusing is done the old-fashioned way, by adjusting the distance of the camera from the subject
     
  5. F/1.4

    F/1.4 Member

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    I wouldn't be surprised if they were damn near optical copies