I heard back from Jeff Cable on his experience shooting with the Canon EF 200-400mm f/4L IS USM lens on his Canon 1D X.  Here’s what he had to say:

[Update: The Canon EF 200-400mm f/4L IS USM lens with built-in 1.4x extender is now officially available. It is priced at $11,799. Check it out here at B&H Photo and here at Adorama.]

Oh my goodness – I am soooooooo hooked on this lens!!!! I am begging and pleading with Canon every day to get use of one of these for the rest of the Olympics.

Here is my take. [Read more…]