<p>While your typical street photographer may be perfectly happy with a couple primes, avid fans of sports and wildlife photography need to go big. Very big. Enter the world of super telephoto lenses.</p><p>Canon users enjoy quite a selection of super telephoto primes and zooms, which, for wildlife photographers, are invaluable tools to capture often-skittish animals from afar. One of the more drool-worthy lenses is the hefty Canon 600mm f/4L IS II. Weighing in at over 8.6 lbs., this 'big white' lens is not only hefty on the scale, but hefty on the wallet at a list price of US$12,999.</p><p>Canon Rumors has now uncovered a couple new Canon patents from Egami detailing two updated 600mm lenses. The first -- and least interesting -- is a more traditional 600mm optic. We don't see the lens likely to be released anytime soon, as the current Mark II version was released only back in 2011. For context, the original 600 f/4L IS made its debut over a decade before that, in 1999.</p><p>Canon 600mm f/4 lens design patent #1</p><p><a href="http://www.imaging-resource.com/news/2014/03/04/canon-600-mm-f-4-lens-patents-omg">Keep reading...</a></p>