Understand exposure triangle from "summary" of Tony Northrup's DSLR Book: How to Create Stunning Digital Photography by Tony Northrup
The exposure triangle is the foundation of photography. It consists of three elements: aperture, shutter speed, and ISO. Each of these elements affects the amount of light that reaches the camera's sensor. Aperture is the size of the opening in the lens through which light passes. It is measured in f-stops, with larger f-stop numbers indicating smaller openings. Shutter speed, on the other hand, is the amount of time that the shutter remains open when you take a photo. It is measured in fractions of a second, with faster shutter speeds allowing less light to enter the camera. ISO is the sensitivity of the camera's sensor to light. A lower ISO is less sensitive to light, while a higher ISO is more sensitive. Understanding how these three elements work together is crucial for achieving the proper exposure in your photos. Changing one element will require adjusting one or both of the other elements to maintain the correct exposure. For example, if you increase the aperture to let in less light, you may need to decrease the shutter speed or increase the ISO to compensate. Mastering the exposure triangle will allow you to take full control of your camera and create stunning photographs in any lighting conditions. By experimenting with different combinations of aperture, shutter speed, and ISO, you can achieve the desired effect in your photos and unleash your creativity. So, take the time to practice and become familiar with the exposure triangle, and you will see a significant improvement in the quality of your images.
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