Home » Photography » Photography for Beginners – Camera Light Sensitivity – ISO Explained 📷 DIY in 5 EP 29

Photography for Beginners – Camera Light Sensitivity – ISO Explained 📷 DIY in 5 EP 29

ISO is the measurement of light sensitivity. Setting your camera’s ISO level is necessary to achieve the right light level to your taste. The lower the ISO the less sensitive it is to light, the darker the photo. A higher ISO increases the light sensitivity. With lower sensitivity you can get photos with less light but they will be grainier or noisier. Base ISO is the lowest ISO setting for a particular camera. The ISO can be adjusted in increments of 100, 200, 400, 800, and so on. Each step up doubles and each step down halves the light sensitivity. You can set a camera to Auto ISO but if you would like a better looking photo in low light you can lower the ISO but you must use a tripod since it requires longer exposure. Raise the ISO for action shots where you would like to prevent blur but know they might look grainier in low light.

About the acronym “ISO”:
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations. Use of the standards aids in the creation of products and services that are safe, reliable and of good quality. The ISO standard ISO 12232:2006 gives digital still camera manufacturers a choice of five different techniques for determining the exposure index rating at each sensitivity setting provided by a particular camera model. An exposure index (EI) rating—commonly called ISO setting— is specified by the manufacturer such that the sRGB image files produced by the camera will have a lightness similar to what would be obtained with film of the same EI rating at the same exposure.

sources: https://en.wikipedia.org/wiki/Film_speed#The_ISO_12232:2006_standard

Check out our previous videos on the Three Pillars of Photography:

Shutter Speed: https://www.youtube.com/watch?v=3aXMw7uMgX8&index=1&list=PLAsUq-kEMSD6Fpn4X9OIzRebpaqlQ5uf3

Aperture: https://www.youtube.com/watch?v=zUt9VqxXMQc&index=1&list=PLAsUq-kEMSD6Fpn4X9OIzRebpaqlQ5uf3&t=2s

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