That's a really beautiful shot. Now do you know how IR reacts to TEMPERATURE? I'll be in the grand canyon so I'll be in wide open spaces, so I was thinking unlike your EI3 shot perhaps I should do EI6 since there is more sun beating down... but it's also sort of a HEAT thing, and it's cold there, like 30 degrees to 5 degrees Fahrenheit... will that affect the shot?
Also, where did you meter? the leaves, the sky, the river? etc. Thanks!!