Abbreviation: IS = "Image Stabilization" (Canon)

The abbreviation IS means "Image Stabilization" and is seen on Canon products.

Explanation from Canon

See examples of effected products

	Canon EF 100mm f/2,8 L IS USM Macro
	Canon EF 100-400mm f/4,5-5,6 L IS USM
	Canon EF 200mm f/2 L IS USM