Checked out a host of info on the web and there is another choice as posted earlier the 400 f4 DO. Smallish lightish IS and L series. Having said that it has over a stop advantage over the 400 5.6 has IS can be hand help too. The 500 has the extra 100mm true but until then i checked out the prices on second hand L series glass. I could sell my gear and make a profit! I wont but if i bought the 400 DO used it until or if i really get into this i could re sell it on and not make much of a loss. These L series lens dont loose much second hand.
Mick
Mick
