The making of a 500 F4.
Here’s an interesting three-part series that shows the creation of a Canon 500mm f/4.0L IS lens. It’s a neat look at the guts of glass, and an opportunity to see how exactly the various components of a lens are created and put together.
You get to see the entire process, starting with raw materials and ending with the finished, $8,000-$9000 lens.
Seeing how fine-tuned many of the steps in the process have to be, it’s no wonder these lenses can end up costing as much as a car.
http://www.youtube.com/watch?v=OkWsk9rXpcU&feature=player_embedded
http://www.youtube.com/watch?v=7T7BDeMU_Ks&feature=player_embedded
http://www.youtube.com/watch?v=KpkAWZTwqI4&feature=player_embedded
