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.
Most lenses that achieve 1:1 reproduction are named macro lenses, however Nikon uses the term Micro to describe their 1:1 reproduction lenses. This is because of the official definitions of the two words, and how they actually relate to lens magnification or reproduction. Outside of photography, macro means large, while micro means small. In the realm of photography and camera lenses, some manufacturers used the term macro because they wanted to denote a lens that could make small things appear large, despite the fact that most macro lenses do not exceed 1:1 reproduction, and therefore are not actually making the subject larger than life, but merely life-size.