Is anybody using the D50 with big pro zooms like the 80-200 2.8D Tripod Mount? I'm not talking about the AFS model. I am looking to pick-up a fast tele zoom to shoot my children's sports. I'm pretty sure the focal length will be fine for basketball and infield shots of baseball.
I'm worried about the AF speed. Has anybody used this lens with the D50? Can that little camera's AF motor drive that big lense without AFS? I ordered my D50 this week from B&H for $599, and I don't have any other big pro zooms with which to test it before I buy the 80-200.
I'm not shooting pro sports, but I'm buying this to shoot action shots, and need to be able to track and focus. The AFS models are just a bit out of my price range, as I'd also like to pick-up a 300mm f4 for football and wildlife shooting.
On the D50, the CAM900 autofocus module isn't as fast as the CAM1300 of the D100. There are times that when I'm trying to track my dog or kids playing that I wish the camera locks on the subject faster. However, once you're locked onto the subject, it'll do a fine job, even for a non-AFS lens.
For an AFS lens, the AF obviously locks on faster as I've tried it with my 24-85G and a rented 70-200VR (wow, what a lens--fast, sharp, and beautiful bokeh!). For my 28-200, however, it takes FOREVER trying to lock onto a rapidly moving subject. That's probably like comparing apples to oranges, though, since the 28-200 is not a fast lens like the 80-200 2.8D, nor was it (28-200) intended for rapid action shots. As satisfied as I am with my D50, I do wish that it had a faster autofocus system as I'd like to shoot sports as well.