I know more than a few Pro's and NOBODY doesn't have a 100-400...due simply,it is THE most for the least(mass,length,focal coverage and IQ).

I've a touch of Faith,in a 1D or 1DS's relative abilities,when gunning a 100-400 aboard same.

Knowing me,I'm prolly sandbagging,more than a fhuqking "smidge".

Hint.

Someone who "knows" as "much" as you,is always going to be better served by asking questions...than giving "answers".

Laughing!.............

Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."