Specific technical and technological knowledge for shooting on analogue 1. Focusing To achieve proper focus in an image, it's essential to understand the camera's optical construction. The object being filmed reflects light towards the camera lens, which captures and focuses it onto the film's surface, thereby producing an image. The shutter rotates in front of the film. When the shutter opens (allowing light to pass through), the light that forms the image enters through the camera lens, passes through the open shutter, and then through the film gate, finally focusing on the film's surface, creating the image. I. II. In image I, you can see a shutter with a 180-degree opening. In image II, there is a shutter with two 90-degree openings. If the shutter in image II rotates at half the speed of the shutter in image 37