Blendenlamellen
Blendenlamellen, also known as iris diaphragms, are thin, circular plates used in photography and cinematography to control the amount of light that reaches the camera sensor or film. They are typically made of metal and are mounted on a rotating mechanism within the lens. By adjusting the position of the diaphragm, photographers can change the aperture size, which in turn affects the depth of field and the exposure of the image. The aperture size is measured in f-stops, with lower numbers indicating a larger aperture and more light entering the lens. Blendenlamellen are essential for achieving the desired exposure and creative effects in photography and cinematography. They are often used in combination with other lens elements, such as lenses and filters, to create the final image.