The easiest way out of this amateur photographers usually find that the lens unit is tilted upward, breaking it above condition (vertical photographic material). The vertical lines are obtained by building a picture converging at an angle upward and the stronger the more the slope of the apparatus. Such a solution is wrong. In cameras, equipped with a device enabling the lens to shift the center of the plate, from such difficulties can be accessed by moving the camera up. Such a device equipped with only a laminar chamber. They are the best for architectural photography. In cameras, designed specifically for architectural photography, in addition, a device that allows you to tilt the back of the device relative to the optical axis of the lens. In this case, sending the optical axis of the lens a few up, you can save the upright rear wall. But such a device equipped with very few cameras. Most of the cameras that the amateur photographer will have to deal with such a device does not have. In such cases it is necessary either to find a better shooting point, located approximately photographed against the center of the building and at a sufficient distance from the building or away from the camera as far as possible, thereby reducing the scale to go to the building in the picture, or use a wide angle lens. The first of these methods is applicable only in cases where the front of the building photographed at a sufficient distance from it there is any elevation or other building from the window of lime which can shoot. However, too high a point when shooting architecture also fails, as too low. The vertical lines of the building, in this case converge at an angle downward. More accessible the second method. However, in this case due to zoom out small parts of the building to be lost in the picture, but this will be tolerated. But not always possible to move away from the photographed building a sufficient distance (a narrow street, the promenade, etc.). In such cases, a wide angle lens. However, it should be remembered that it is more sensitive to tilt the camera and gives a very slight slope of the building and the violation of the geometrical convergence of the lines. Therefore, using the wide angle lens, the device should be positioned as accurately as possible, avoiding tilt it up or down.