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Finding your Sweet SpotA quick way to improve the pictures you get from your digital camera.Finding your Sweet Spot by Photosbykev
Every camera lens, with an adjustable aperture, has one aperture setting that will give you the maximum sharpness and detail. This is referred to as the lens' "Sweet Spot", and it is very easy to determine which aperture it is.
Please note that image sharpness has nothing to do with Depth of Field (DoF) other than the aperture selected will give you a specific DoF.
As you change the Aperture setting from large numbers (f22) to small (f2.8) more light is allowed through the lens, how long it will strike the sensor or film for is defined by the shutter speed. I know it's the opposite of what you would think. The lower the number the bigger the Aperture and consequently more light is allowed through the lens. More light requires a faster shutter speed to avoid overexposure. That's why lenses with bigger openings are referred to as "Fast Lenses".
Here is how to find your lens' sweet spot:
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