The Nikon AF 105mm f/2.8 D entered the market in 2006 and is highly appreciated by users. It has a well-arranged and well-characterized optical scheme: it is made up of 14 elements in 12 groups, managed by a glass lens; It allows a reduction in aberrations and good sharpness in shots. In the Nikon AF 105mm f/2.8 D there is Internal Focusing, a very good and extremely silent focusing and is able to not change the stabilization of the lens when you want to focus on the subject or object . The diameter of the focusing ring may seem uncomfortable, but all it takes is a little practice and you will handle it without problems. The blurring of the lens is well done: shots in this mode are pleasant to observe. Furthermore, there is a selector for full focus which limits the range of the focus itself, by approximately 0.5 m. The Nikon AF 105mm f/2.8 D is a very compact lens and you can feel it when you carry it: its weight is 720 g and, initially, it is tiring to use. You have to get used to it like all slow people. Being from 2006, it is made of a good protective material and I am speaking in terms of climatic adversities, another difficult obstacle for photographers. You can shoot in peace even when it rains or snows. If you are a beginner it is not very easy to use.