Different Lens Mount

Discussion in 'Technical Troubleshooting' started by ChipB, May 1, 2018.

  1. ChipB

    ChipB Member Site Supporter

    Joined:
    Apr 25, 2017
    Messages:
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    Location:
    Central Texas
    Equipment:
    Canon 80D, 100-400L, 24-105L, 17-85 USM, 70-300 NANO, 100 2.8 macro
    This sure looks like a Canon EF mount, but there's too many contacts - anyone know just what it is??
     

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    ChipB, May 1, 2018
    #1

  2. timw4mail

    timw4mail New Member

    Joined:
    Apr 30, 2018
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    Equipment:
    Canon A-1, Canon AE-1, Canon AV-1, Canon FTb, Canon FD 55/1.2 (Original), 2 Canon FDn 50/2, Canon FD 50/2, Canon FD 135/3.5, Canon FDn 100-300mm 1:5.6
    It looks like it might be a Sony Alpha mount, one of the later variants without the screw-drive autofocus.
     
    timw4mail, May 2, 2018
    #2
  3. ChipB

    ChipB Member Site Supporter

    Joined:
    Apr 25, 2017
    Messages:
    49
    Location:
    Central Texas
    Equipment:
    Canon 80D, 100-400L, 24-105L, 17-85 USM, 70-300 NANO, 100 2.8 macro
    Thanks - I'll check it out.
     
    ChipB, May 2, 2018
    #3
  4. Robert Shears

    Robert Shears Active Member Site Supporter

    Joined:
    Apr 24, 2017
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    Equipment:
    Pentax K-5, K-r, K20D, K100D Super.
    Canon G5, Canon 450D, Eos 100, 500, 600, T70 and T90
    Konica Minolta 7D
    Various OEM and 3rd party lenses in Pentax, Minolta and Canon.
    Looks like an EF mount to me, but I have only seen the old Minolta A mount on lenses. It will be interesting if it is a Sony and so close to the Canon mount.
     
    Robert Shears, May 3, 2018
    #4
  5. ChipB

    ChipB Member Site Supporter

    Joined:
    Apr 25, 2017
    Messages:
    49
    Location:
    Central Texas
    Equipment:
    Canon 80D, 100-400L, 24-105L, 17-85 USM, 70-300 NANO, 100 2.8 macro
    UPDATE: I purchased a different Sigma lens (18-200mm) but with the same contact layout (8 instead of 5) and it works perfectly on my 80D. So, not sure what's going on - maybe Sigma has some updated info from Canon??? Or the Sigma Alpha mount is a Canon clone???
    I'm just happy the lens I purchased works!! :)
     
    ChipB, May 9, 2018
    #5
  6. timw4mail

    timw4mail New Member

    Joined:
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    Equipment:
    Canon A-1, Canon AE-1, Canon AV-1, Canon FTb, Canon FD 55/1.2 (Original), 2 Canon FDn 50/2, Canon FD 50/2, Canon FD 135/3.5, Canon FDn 100-300mm 1:5.6
    timw4mail, May 9, 2018
    #6
  7. ChipB

    ChipB Member Site Supporter

    Joined:
    Apr 25, 2017
    Messages:
    49
    Location:
    Central Texas
    Equipment:
    Canon 80D, 100-400L, 24-105L, 17-85 USM, 70-300 NANO, 100 2.8 macro
    Tim, thanks for the link! I'm almost too embarrassed to admit that I actually have 2 of the lenses listed in the article as having the 'extra' contacts! :oops::D
     
    ChipB, May 10, 2018
    #7

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