I was fascinated by this video because I own one of these lenses, but I think it’s worth sharing with you guys as well. This lens is a huge optical achievement from Canon and it puts a smile on my face every time I use it. The built-in 1.4x extender is still a unique feature in the photo world, and it makes this lens design extremely complex. Just look how many pieces there are in this thing!
Should you wish to buy one (warming, you will get sticker shock), they have them at B&H Photo and Amazon.
Here’s my one mounted to my RRS PG-02 Gimbal
