My camera displays bC or Err 99 when I try to take a picture. What does this mean?
BC is an error condition in EOS film cameras, and means one of two things. It either means battery check, so try putting in a fresh battery, or it s a general error condition of some type. If the battery is fine, have a look at the previous section for things to check, especially dirty lens contacts or lens compatibility problems with Sigma lenses. Error 99 is essentially the same error condition as BC, only on EOS digital cameras. The EOS D30 also had error codes 09 and 10, which are similar.
