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.
ALL the reviews of UWA lenses I've read point to this lens for quality of build, and images. There really isn't an (affordable) prime lens for an APS-C (Nikon DX) other then a 10mm fisheye. Tokina 11-16 will not autofocus, Tamron is not quality in 10-24mm, and the 10-24mm Nikon is twice the price.