Rotator cuff injuries cause pain in your shoulder and upper arm. The pain may be most noticeable when you reach up or out. When you turn your arm as you lift it, the tendons are more likely to rub against surrounding structures.
The essential difference between the original series of AF Nikkor lenses and all AF lens types introduced subsequently, from the AF-D versions onwards (see below), concerns the compatibility of a particular lens with Nikon's enhanced Matrix metering system known as 3D Matrix metering that was introduced during 1996.
In the beginning, Nikon made 35mm film cameras. They shot film with an image size of 24 x 36mm. In 1999 Nikon brought forth DX digital cameras, which used digital image sensors which were 1.5x smaller than 35mm film. Until 2003, Nikon's widest zoom was the 17-35mm f/2.8, an $1,800 two-pound lens.