General Foods typically have a corner or side which is perpendicular to the base of the camera. But a third design, the side-angle-side-out to accommodate more radiation.
Typically, food The corners are perpendicular to the base of the camera , but the three sides designed to accommodate wide angle radiation, the greater the side.
Normally food general is the angle or perpendicular to the base side of the camera, but the third designed side angle oblique out to accommodate the lateral radiation more .