101.jpg (2026)

: Controls the camera's sensitivity to light (higher ISO for dark rooms, lower for sunny days).

: You can find a portable reference in the Photography 101 Pocket Guide from Rocky Nook . 2. Composition 101: The Rule of Thirds 101.jpg

The most famous "101" visual guide often refers to the , which explains the relationship between aperture, shutter speed, and ISO. : Controls the camera's sensitivity to light (higher