... so how do you like the 250? I'm convincing myself I need one to better photograph my kids playing baseball. The 150 is good, but I sometimes can't get close enough to the action.
It is a physically long lens so the rig is a bit front heavy. Combined with the heavy focusing and the dark aperture I find using it with a WLF quite difficult so I only use it with a prism. Handholding is tricky as you only get 1/500, maybe 1/250 at best. So I pretty much only use it on a tripod for landscapes. Overall, I like it, I like the focal length for landscapes but it is not an easy lens to use. If I wanted to shoot something that requires fast focusing I'd use something else though, focusing is heavy and slow.