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.
Also note the lens is not an AF-S lens. It is a AF lens so it does not have a built in focus motor. Without the built in Focus motor like AF-S lenses the lens will not autofocus on a D3300. This one autofocus will function on the D3300 Nikon AF-S NIKKOR 50mm f/1.8G Lens B&H # NI5018GAF MFR # 2199.