Aperture
Aperture; An opening, hole, or gap
A space through which light passes in an optical or photographic instrument, esp the variable opening by which light enters a camera.
Because the lens is at the centre of the camera is dims or brightens the entire image evenly.
The aperture controls the amount of focus that is visible in a photograph, this is referred to as: Depth of field,
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| Shallow Deep |
A large aperture ie f2 or f4 creates a small shallow of field, throwing a background out of focus, making the main subject stand out.
A small aperture ie f11 or f16 creates a large depth of field and all in focus.
Controlling depth of field can have a dramatic effect on both the final outcome, particularly with subjects containing both near and distant objects.
Depth Of Field;
is the distance between the nearest and furthest points of an subject which are considered to have sharp focus.
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| An example of aperture pictured here. F1.8 showing shallow depth of field where s F22 shows a great depth of field. |
Sources; http://uk.complex.com/style/2014/12/10-expert-tips-to-immediately-improve-your-photography/aperture
https://cropsensorphoto.wordpress.com/2011/03/09/f-what/
file:///Network/Servers/xserve3.sdcmac.lan/Volumes/XRAID2/UserHomes/30078271/Downloads/2014%20BTEC%20Aperture%20and%20the%20Effects%20of%20Depth%20of%20Field%20in%20Photography%20(1).pdf
http://www.better-digital-photo-tips.com/deep-depth-of-field.html
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