The hole or iris of your lens. The smaller the diameter of the aperture the higher the setting number is (eg. F22). The wider or larger the diameter of the aperture the smaller the smaller the setting number is (f1.4). A Smaller setting number/wider aperture, the blurrier the background, the higher the number setting/smaller the aperture diameter the sharper the background.
Available Light
This is any available light in any location. It can be a lamp, the sun, a candle.
Digital Noise
Digital noise is the texture created from the internal digital process that occurs inside your digital camera. Noise occurs when the digital signal is boosted usually because there is not enough light and the camera boosts the brightness of the pixel.
Film Grain
Film grain is the texture that is created from the chemical development process on the final image of the print. Many settings and technical choices effect the amount of film grain that emerges in the final print.
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