Shutter Speed, Aperture & ISO
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Shutter speed, Aperture and ISO are the three pillars of photography as it has a major effect on your images.
Shutter Speed
The shutter speed controls the amount of time that we capture light for and allows us to freeze or blur motion.
Shutter speed
1", 1/2, 1/4, 1/8, 1/15, 1/30, 1:60, 1:125, 1/250, 1/500, 1/1000 s
Motion
Blur ---------------> Sharp
More light ---------------> less light
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Slow s.speed
When using a slow shutter speed, the shutter remains open for a greater length of time. This not only allows more light to be recorded, it also means any moving objects will appear blurred.
Fast s.speed
Faster shutter speeds mean the shutter remains open for a shorter period of time, resulting in light having less time on the sensor. Faster shutter speeds will also freeze movement and are often used when photographing fast moving subjects like sport or wildlife.
Aperture
Aperture is an SIMPLE concept to understand if you just think about how your EYES work. As you move between bright and dark environments, the iris in your eyes either expands or shrinks, controlling the SIZE of your pupil.
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How does it AFFECT while taking photos?
Large aperture is general good when taking portrait as the shallow DOF blurs the background. On the other hand, small aperture is best at taking landscape picture as you would want a good definition.
Aperture
f/1.4 , f/2 , f/2.8 , f/4 , f/5.6 , f/8 , f/11 , f/16 , f/22
L.Aperture <------------> S.Aperture
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Depth of field
Shallow DOF <------------> Wide DOF
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More light <------------> less light
ISO
ISO is simply a camera setting that will brighten or darken a photo.
​ ISO
100 , 200 , 400 , 800 , 1600 , 3200 , 6400
Small ISO <----------> Large ISO
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NOISE
Less Grain <-----------> More Grain
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LIGHT
Darker <--------------> Lighter
Note: You should only raise your ISO when you are unable to brighten the photo via shutter speed or aperture