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The basics of photography

• The exposure of a photo is controlled by the aperture, shutter speed, and ISO. 
• The aperture is the opening of the lens or the size of the opening of the lens.
• If you look at your lens you can see the aperture blades open and close depending on what your aperture value is.
• The bigger your aperture value is the more light comes in and the smaller your aperture value is the less light comes in.
• Aperture effects the depth of field (how much of your image is in focus)
• A shallow depth of field means that your subject is in focus, but it's foreground and it's background is not in focus.
• A wide or large depth of field means a lot of your image is in focus so it's not just the subject being focused on.
• If you want a blurry background (smaller depth of field) you need a bigger aperture.
• Shutter speed is how fast your shutter opens and closes or how long your exposure takes place for.
• The faster your shutter speed, the shorter the exposure, meaning you get less light. The slower your shutter speed, the longer your exposer, meaning you get more light in your photo.
• The faster your exposure, the more focus. The slower your shutter speed is, the less focus.
• The ISO is the sensitivity of the image sensor found in your camera
• If your ISO is low then it will be less sensitive to light (more light) to expose your image
• If your ISO is high then it will be more sensitive, meaning you need less light to expose your image.
• Little dots in the image are caused by higher ISO
• Noise in the image may desaturate or really saturate your photo (give you unrealistic colors).

EXAMPLE EVENT: 

1. You know it's sunny outside and you want your background to be blurry

 -Recommended: Set ISO to 100, lens to f/1.8, and shutter speed should be 1/125 of a second

2. You're going to be indoor photographing sports

-Recommended: Set shutter speed at 1/640 of a second, lens to f/3.5, and ISO 4000

ADDING LIGHT AND CHANGES MAY VARY