Beginner guide to aperture and Depth of Field.
This video tries to explain the basic principle of aperture.
What it is.
What it does
How its used
The effect it has.
Different lenses have different apertures, so please bear that in mind, you lens may not go to f/1.4 or f/22.
Also, I havent talked about diffraction in this video. This is when a lens starts to loose sharpness due to a narrow aperture. This is often seen on lenses at f/11 to f/16 or above, so try not use any higher than f/16 if you can help it.
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