Pros and serious shooters get a fisheye zoom, a telephoto zoom and two updated f/2.8 super-tele primes.
Canon EF 300mm f/2.8L IS II USM lens
Canon's 300mm f/2.8 first appeared way back in 1974 and is now in its 6th generation. The latest version shows some serious improvements over its predecessor that pros will surely appreciate. The lens (without hood) weighs in at 82.9-ounces, which is 8% lighter than its predecessor. Plus, the new version has a built-in tripod collar.
Part of that weight reduction comes from the inclusion of two fluorite elements—they're lighter than the UD glass. But, despite its smaller size and lighter weight, they have also increased the overall durability of the lens by increasing the amount of magnesium alloy and titanium in its barrel construction. The improved IS system offers four-steps of blur-annihilation and is much quieter than its predecessor thanks to a totally revamped design that nixes the electromagnets.
Canon says it will be available before the end of the year and will carry an approximate retail price of $7,000.
Canon EF 400mm f/2.8L IS II USM
If 300mm isn't quite far enough for your shooting style, you can take the plunge and pick up the 5th generation of Canon's 400mm f/2.8L. They were able to drop the weight of this beautiful beast from 189.4-ounces all the way to 135.8-ounces. It also has a pair of fluorite elements and the better, quieter IS system. If you're ready to take the plunge, it'll be available before the end of the year for a suggested $11,000.
Both of the new pro super-tele lenses have a security slot, which allows for the attachment of a wire-type security lock to protect the pricy glass. They're also the first lenses to have the Power Focus mode to assist video-shooters in performing smooth rack focuses.