What are macro rings are ordinary hollow tubes that change the working length of your lens. That is, it’s just a tube that is placed between the lens and the camera.
How they work – imagine that you are focusing on a fixed lens, one of the old ones, where the entire lens unit (all lenses) goes when focusing, you twist the focus, all lenses go slowly (the trunk of the lens lengthens), leave and leave as far as the design allows you lens. But the focus is spinning to a certain value and in order to draw out (push back) we add rings even more. Of course, in modern lenses, focusing sometimes happens differently, because the explanations are given just for example. Continue reading
One of the most important and basic parameters of any photographic equipment is the size of the photosensitive sensor of the camera. And this is not about megapixels, but about the real physical area of the photosensitive element.
Previously, most photographers were shooting on film cameras, which used the so-called 35mm film (standard film from the distant 1930s). These were quite old times, and somewhere since 2000, digital mirror cameras (CCP) became very popular, the principle of operation of which remained the same as in film cameras, but instead of CCP film they began to use an electronic photosensitive matrix, which forms the image . Continue reading
Distortion is mainly of two types – barrel-shaped (convex, Barrel distortion) and pillow-shaped (concave, Pincushion distortion). Distortion is usually called simple ‘barrel‘ and ‘pillow‘. But there is also a complex or complex distortion (complex distortion), in which the distortions in different areas of the image have a different type and intensity. Complex distortion is quite difficult to correct with the help of graphic editors, since there the distortion can be waves ’. Professional photographers are affectionately referred to as “camel’, sometimes ‘a double-humped camel‘, as such distortion often gives a kind of visual humps and depressions in the image. Continue reading