Telecentric illumination is quickly becoming the illumination of choice for precision metrology due to its ability to produce "hard" edges that can be easily analyzed. Use this easy-to-follow three minute tutorial to see why the benefits of telecentric illumination far outweigh those of standard, diffuse illumination sources in machine vision applications. Gregory Hollows, Director of Machine Vision Solutions, explains the benefits of using telecentric illumination compared to standard backlighting. The example setup includes EO's very popular TECHSPEC® Telecentric Backlight Illuminator. For more information, read our Telecentric Illumination: Why You Need It in Machine Vision Applications note.