They are also lacking when it comes to 24 and 17 mm tilt shift lenses. This is one of the big reasons to why I haven't jumped ship.If Nikon, Sony or Olympus offers similar lenses to what own now, I will have jumped ship.
Actually I looked at Nikon's lenses. They have everything except 70-200 f/4 (which I never wanted) and 135 f/2.
If this new sensor from Canon is all we are hoping for, then I will have zero reason jump.