« on: September 11, 2014, 05:52:24 PM »
I've gotten a real lesson in high ISO needs. I just received the Tamron 150-600 f/5-6.3 lens and have been testing it on my 7D and 6D. f/5 and 6.3 are really slow! I can add 3 stops of light on the 6D (ISO 6400 vs, 800 on the 7D) which makes the lens a lot more usable. That won't help on BIF, so I'll be stuck shooting in good light on the 7D (really would like to have a 5D!!