I just purchased a Nikon D7000 with an 18-105 f/3.5-5.6 AF-S lens. I'm also looking at purchasing a lens around the 200-300mm focal length range, and I found the 70-300mm f/4-5.6 AF lens. As far as I know (and I'm completely new to DSLR photography, so bear with my lack of proper terminology), my D7000 can autofocus with this lens as the body has an autofocus motor.
I've seen two different models of this particular lens: AF-D and AF-G. It seems as though the AF-D is a lot harder to find and more expensive than the G because of the G's lack of a physical aperture adjustment ring. I haven't quite become accustomed to the controls on the camera, so I've found myself manually adjusting the aperture a few times. However, from what I've read (and I would assume this is the case), it's possible to adjust it with one of the two dials on the camera.
I'm just wondering whether it's worth spending the extra money on the AF-D, or if the AF-G will provide me the same quality pictures and will have the same functionality for a lower price. (I'm on a student's budget, so price is quite important to me).
Thanks, and greetings from SU!