Do not look for the portrait inscription on this lens – there are none. A portrait lens simply has an EGF focal length of 85-120mm, depending on the taste of the photographer. The reason is simple: when communicating with a person, most of us look at the interlocutor with both eyes, and therefore we are used to seeing a completely certain angle, and only people with one-sided visual impairments see opponents differently – however, no one has ever considered a minority, and cynics – photographers are no exception. To understand these people without changing your position, close one eye with your hand and see how much the angle has changed: the cheekbones have expanded, the ears have hidden, the nose has spread … do you like it? And the reason is simple: looking with two eyes, the light from the object (naturally reflected – during life, few people glow personally) spreads in one direction, practically not converging, and with one we force it to converge to one point at an angle. The situation can be corrected by making this angle sharper so that the extreme rays are closer to parallel lines, which we have when looking at the object with two eyes – not a fountain, of course, but this is the best of what we have … because the lens has only one organ of vision.
Naturally, portraits are taken from a certain distance (again, we recall the “zoom with our feet”), depending on what is needed: close-up, bust, half-length or full-length – the narrow angle of coverage of the lens itself will “bring” us closer to the object.
Please note that there are a lot of different portrait lenses – macro lenses are similar in their technical characteristics, but the requirements are different in both cases: the “portrait lens” should not only give a sharp picture in the focus area, it should also blur the background beautifully (if you know what “bokeh” is, you will understand), while only sharpness is required from “makrik”.