According to B&H's web site, the 300/2.8 AF-I can be used with the TC14E and TC20E. According to the same table, the 300/2.8 AF-S can *not* be used with the TC14E and TC20E. Can anyone confirm whether or not the 300/2.8 AF-S lens will or will not correctly function with the autofocus converters? The AF-S lens is actually listed at a lower price than the AF-I. My understanding is that the AF-S lenses are slightly faster in autofocus. If that is the case, why would someone pay $500 more for the AF-I? don ferrario http://www.epix.net/~ferrario
