Sounds like you have some older Sigma lens with an EOS mount.
Some may still be able to be modified by Sigma to work properly. If Sigma still has parts, they will do this modification for free. But, on many of these lenses they no longer have the needed replacement parts.
Contacy Sigma with an exact description of the affected lenses and they will inform you immediately if they can make the upgrade.
Some may still be able to be modified by Sigma to work properly. If Sigma still has parts, they will do this modification for free. But, on many of these lenses they no longer have the needed replacement parts.
Contacy Sigma with an exact description of the affected lenses and they will inform you immediately if they can make the upgrade.
I believe some of those old Sigma lenses can be rechipped to work with current cameras. If you like it that much, you may want to check with Sigma about that.
Yea, I just sent them an email 
