The Exposure Triangle
(ISO/Aperture/Shutter Speed)
The Exposure Triangle
ISO
ISO is the SENSITIVITY of the sensor to LIGHT hitting the sensor.
Low ISO = Low Noise
High ISO = High Noise
Aperture
Aperture is the SIZE of the Lens opening. It controls the AMOUNT of LIGHT hitting the sensor.
The larger the opening, the more light; the smaller the opening, the less light.
iPhones usually are fixed at f 1.8. (Phone apps are available that can change these settings.)
Shutter Speed
Shutter speed is the DURATION of LIGHT hitting the sensor.
Digital Phones usually can range from 1/8000 of a second to 1/3 of a second. (Phone apps are available that can change these settings.)
Aperture
Understanding Aperture - A Beginner's Guide
Introduction to Aperture in Digital Photography
Aperture and Shutter Priority Modes
Shutter Speed
Understanding Shutter Speed - A Beginner's Guide
Aperture and Shutter Priority Modes
ISO
Understanding ISO - A Beginner's Guide
ISO Settings in Digital Photography
Additional Links
* How to Control Aperture and Shutter Speed on an Entry Level Point and Shoot Camera
Getting Off Auto - Manual, Aperture and Shutter Priority Modes Explained
Videos
VIDEO - Aperture, Shutter Speed, and ISO - Photography 101
VIDEO - Aperture, Shutter Speed, ISO & Light Explained
VIDEO - The Three Basics of Exposure and Photography
iPhone Apps to control ISO, Aperture, and ISO
Manual Camera - free app (ISO, Aperture, and White Balance)
Slow Cam - free app - shutter speed only