Shutter speed and aperture values are at a constant tug-of-war concerning light. Suppose someone was a handed a camera and was told that its aperture and shutter settings were set to ensure proper exposure using a shutter speed of 1/60th and an aperture of F/8. However, suppose that they wanted a faster shutter speed to capture a moving object, so they set the shutter speed to 1/250 and took a picture, they would get an underexposed photo because they didn't allow the film to be exposed for the 1/60th of a second it needed. Therefore, they would need to change the aperture to allow more light in, perhaps by changing it to F/1.8, or whatever the maximum aperture of the lens is. It is always good once you have changed your settings to check them with a light meter and see if you are giving enough light for proper exposures.Aperture Vs. Shutter Speed
Digital Grabber compares Aperture vs. Shutter Speed
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