Today we got a chance to firm up our knowledge on aperture; aperture directly controls the depth of field or amount of area of the image that is in focus. The aperture is basically the size of the hole that lets in light into the camera, this is measured in f-stops, the lowest f-stop number is 2, although it is the lowest number it is actually the widest aperture as the hole is biggest which gives a really shallow depth of field. As you go up a stop so from 2 to 2.8 you half the amount of light let in.An f-stop number of 64 however has a larger depth of field but is the smallest hole.
A list of full f-stop numbers: 2, 2.8, 4, 5.6, 8, 11,16,22, 32, 45, 64
Learning about aperture really comes in handy when you start looking at lighting techniques and ratios.
This picture is shot with f 5.6 so only the finger tip is in focus.
The picture above is shot with f 22 so nearly the whole image is in focus.
Learning about aperture really comes in handy when you start looking at lighting techniques and ratios.
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