F-Stop is a confusing topic for most photographers, even me at times, but understanding the concept of an f-stop is essential for any photographer. You'll see a drastic difference in your pictures. Wikipedia defines F-stop as "In optics, the f-number (sometimes called focal ratio, f-ratio, f-stop, or relative aperture) of an optical system expresses the diameter…
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What the f-stop! Test your photographic knowledge in…
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