CP+ 2015: Canon shows 11-24mm in cross-section

Canon's new 11-24mm F4 is attracting a lot of attention at this year's CP+ show in Yokohama, but away from the crows of keen enthusiasts waiting to get their hands on samples, we found a very much non-working example, cut in half showing its internal construction. Click through to take a look at what this complex lens is made of - literally.