Amita --
I concur on the M*300/4 as a very nice hand-holdable long lens. I use it a lot at the races. My only gripe is that it's a heavy lens with no tripod collar, meaning I pretty much *have* to hand-hold. Puting that much unsupported weight on the camera's lens mount scares me a wee bit, and it does tend to be twitchy on light- and medium-duty tripods.
-- Stephen Moore
Jens Bladt wrote:
I can also recommend the SMC M* 4.0/300mm. It's manual focus of cource. Used
with the Pentax F 1.7x AF adapter, it becomes a AF 510mm. Truely a nice
combo.

