Lon wrote: Yeah, but a 300 f/4 is not long enough for most shots I want, and a 2x puts me right back at f8, where my mirror lens is. No help. Need faster lens to start with.
REPLY: Apart from the 300/2.8 you could also look into the A* 600/5.6 if you really need the reach; Perhaps together with a 300/4.5. It doesn't weight much more than the 300mm and is significantly lighter than the 400/2.8.
