So, ISO 200 is twice more sensitive than ISO 100, while ISO 400 is twice more sensitive than ISO 200. This makes ISO 400 four times more sensitive to light than ISO 100, and ISO 1600 sixteen times more sensitive to light than ISO 100, so on and so forth.
https://photographylife.com/what-is-iso-in-photography
ISO (International Organization for Standardization) is an independent, non-governmental membership organization and the world's largest developer of voluntary International Standards.
http://www.iso.org/iso/home/about.htm
We are made up of our 162 member countries who are the national standards bodies around the world, with a Central Secretariat that is based in Geneva, Switzerland. Learn more about our structure and how we are governed.
http://www.iso.org/iso/home/about.htm
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations. Founded on 23 February 1947, the organization promotes worldwide proprietary, industrial and commercial standards.
https://en.wikipedia.org/wiki/ISO
It's all in the name. Because 'International Organization for Standardization' would have different acronyms in different languages (IOS in English, OIN in French for Organisation internationale de normalisation), our founders decided to give it the short form ISO. ISO is derived from the Greek isos, meaning equal.
http://www.iso.org/iso/home/about.htm
In very basic terms, ISO is the level of sensitivity of your camera to available light. The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your camera. The component within your camera that can change sensitivity is called “image sensor” or simply “sensor”.
https://photographylife.com/what-is-iso-in-photography
In the above ISO Speed Example, if your camera sensor needed exactly 1 second to capture a scene at ISO 100, simply by switching to ISO 800, you can capture the same scene at 1/8th of a second or at 125 milliseconds! That can mean a world of difference in photography, since it can help to freeze motion.
https://photographylife.com/what-is-iso-in-photography
Link to this slang definition. To link to this term in a web page or blog, insert the following. To link to this term in a wiki such as Wikipedia, insert the following. Some wikis use a different format for links, so be sure to check the documentation.
http://onlineslangdictionary.com/meaning-definition-of/iso
The ISO story began in 1946 when delegates from 25 countries met at the Institute of Civil Engineers in London and decided to create a new international organization ‘to facilitate the international coordination and unification of industrial standards’.
http://www.iso.org/iso/home/about.htm
Camera ISO is one of the three pillars of photography (the other two being Aperture and Shutter Speed) and every photographer should thoroughly understand it, to get the most out of their equipment. Since this article is for beginners in photography, I will try to explain ISO as simple as I can.
https://photographylife.com/what-is-iso-in-photography
what's iso mean
Iso means equal. ISO means Equal.