Canon has announced today that they’ve reached the milestone of having produced 50 million EF lenses.

TechRadar reports that the momentous mark has taken 23 years to achieve, with the first lens an Ultrasonic Motor – EF 300mm f/2.8L USM arriving in 1987. It was a lens considered an essential piece of kit for wildlife and sports photographers.

The article goes into other lens firsts that have occurred in the 23 year period, before speculating on what the next 23 years might bring – holo-lenses, 3-D ready kit and, of course, the ability to see through walls…