Opticallimits

http://www.lensrentals.com/blog/2015/02/...-lens-ever

  Yes, you have to pay the price for that level of construction, from the outside it looks a quality item, but it's rare to see that level of build once taken apart!   Looks so good inside it almost seems a pity to put it back together. 

 

 Nothing much to say other than bravo Canon!

Let the time tell

http://www.opticallimits.com/nikon--nikk...est-report