Autofocus or autofocus for most photographic scenes is the preferred solution over manual focus. In skilled hands, autofocus focuses more precisely, and, most importantly, faster than the average photographer. However, autofocus is far from being as simple as it might seem to a novice amateur photographer, and its proper use is very far from the point-and-shoot principle. There are a number of subtleties that you should learn if you want autofocus to stop living its own life and begin to do what you want from it.
I highly recommend that you re-read that section of the manual for your camera that focuses on autofocus – these are some of the most useful pages in the entire manual, and the information contained therein should not be neglected. At a minimum, you should be aware of which controls are responsible for switching between different autofocus modes and choosing the focus point you need. Continue reading
According to an established tradition, autofocus is activated by pressing the shutter button halfway, and pressing it fully releases the shutter. However, it is often much more convenient to separate the shutter release and autofocus. Back-button focusing or back-button focusing is an autofocus control scheme that is not very popular among amateurs, in which autofocus is activated not by the shutter button, but by an independent button on the back of the camera.
Some cameras have a special focus button AF-ON, and some allow you to reprogram the AE-L / AF-L button so that it is responsible for autofocus, and not for exposure lock. Continue reading
The word “macro photography” usually means photographs taken on a sufficiently large, but still not microscopic scale, i.e. from about 1:10 to 1: 1. Pictures with a scale exceeding 1: 1 are already referred to as microphotographs, and everything smaller than 1:10 is considered just a close-up. The given ranges of scales are very arbitrary, and can serve only as guidelines, and not in any way rigid boundaries between individual genres of photography.
Perhaps the reader does not quite own the concept of scale, and the numbers 1: 1 tell him little about what? There is nothing complicated here. The shooting scale is the ratio of the linear dimensions of the subject to the linear dimensions of its image projected by the lens onto the matrix or film. A 1: 1 scale means full-size Continue reading