Okay, so I'm in the market for a longer f2.8 nikon lens (and i don't feel like losing a kidney and my first born to get the 70-200 VR f2.8...) I see deals around (craigslist, etc.) that have the older 80-200 f2.8's for under a grand, in fact, some are as cheap as 400 bucks (400 bucks is more like a blood donation once a month for a while haha). BUT i read on one of the ads that the guy had tried the lens on his D50 and had gotten a E99 error. So, I'm wondering if the guy just had his aperture ring set to manual and it was freaking out his camera, or if the older vintage lenses just plain don't play nice with the Dslr's? Also, I've seen two different types of the 80-200's (the push-pull and the newer kind). Does anyone here have either of these and which one would stand up to the most abuse over time? Thanks.