CA11 - card or omni (you can change the cap)
CA14 - card or omni (manufactured in either card or onmi, but you can't change the cap, as the windscreen is integral)
ca-11 and ca-14 have almost identical frequency response in the mid range and here is some info Chris posted a while ago:
The ca-14 is a larger mic with a better overall quality of sound deeper bass the high end is about the same now that I have improved the ca-11 the ca-14 uses a larger 14 mm capsule the ca-11 uses a smaller 8 mm capsule. Both mics are good The ca-14 is more forgiving of placement where as the ca-11 needs to be up high and pointed more directly at the sound source.