Camera Geometry And Light

A geometric relationship exists between the lens focal length, image format, area (angle) of view, and the amount of light that reaches the film or electronic sensor. Some common lens focal lengths are given in Table 6-2. Many cameras are now equipped with zoom lenses that allow the user to vary the focal length. The lens aperture and shutter speed are fundamental controls for how much light reaches the film or image sensor. Film speed or ISO rating determines how much light is required for correct exposure of the photographic emulsion or detector elements. Each of these factors is examined in turn.

100 Photography Tips

100 Photography Tips

To begin with your career in photography at the right path, you need to gather more information about it first. Gathering information would provide you guidance on the right steps that you need to take. Researching can be done through the internet, talking to professional photographers, as well as reading some books about the subject. Get all the tips from the pros within this photography ebook.

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