I found out that the Sigma 100-300/4 APO IF EX Lens produces some incorrect exifdata (EOS 1D MKII)
The 1st point is:
The Lens is not yet listed in exiftool respectively has the same ID (#152)like the sigma 10-20 and 12-24.
The 2nd thing is:
In Makernotes/CanonCameraInfo Section is the LongFocus 44, the ShortFocus is ok (100), the LensType also (152).
In Makernotes/CanonCameraSettings both Focus-Values are OK but the LensType is "0".
I think its a Problem of sigma-canon, right?