Super wide-angle lenses are a very specific class of optics, with their own features and fields of application. The effect they create is very difficult to replicate with other lenses or programs.
Lenses with a field of view of 90 or more degrees on the diagonal of the frame (that is, wider than those of the human eye) and a certain focal length are considered “super-widths”:
for cameras with APS-C matrix – from 15 mm and less;
for full-frame cameras – less than 24 mm.
Such optics is clearly associated with distortions – perspectives and geometry. Here, these lenses are divided into two classes: fisheye (fisheye) and rectilinear (without distortion). Continue reading
publication in the media, posting on the Internet, printing on booklets, banners, etc. Accordingly, laws regulate these rights differently. And very often allowed to shoot, but prohibit or restrict distribution.
The Constitution gives us the right to shoot almost anywhere: “everyone has the right to seek, receive, transmit, produce and distribute information in any legal way.” But there are a number of laws that restrict this right in specific cases.
You can immediately identify three areas when photography may be prohibited. All of them are connected with one condition: restriction of access to these areas. That is, you can remember: where you can not appear without permission, you can not take pictures. These three “no” looks like this:
objects related to state secrets (for example, military units, “secure” enterprises, etc.);
objects related to trade secrets (enterprises that use unique technologies protected by intellectual property laws); Continue reading
“For a long time I was engaged in creating scenes and props for my pictures, an occupation that gradually turned into a separate business for the production and sale of furniture. And now I have decided that it is worthwhile to start making a video on how such things are created, and how you can achieve “high-budget” results on your own with very little cost.
In this 4-minute video, I will show how you can take underwater pictures without submerging. Everything can be done right at home, with the help of a few wooden bars, a transparent sheet of acrylic and the simplest skills in working with hands.
We want to make a shallow “pool” with water on a sheet of acrylic, through which the light will shine. Then it will be enough to run on the water with your hand to create the illusion of waves.
We will need: Continue reading