>> It can be used of course, but for these focal lengths the 1.4-L >> converter is definitely a better choice
> Inquiring minds want to know - Why is it the better choice? Well, it can't be a "better choice" if it doesn't fit, and the A 1.4-L certainly will not fit the A* 300/4, for example. On the other hand, I don't know if that TC will fit the 500/4.5 screw mount lens with adapter, so maybe... Fred
