Hi All,
So, I've been using Dual ISO exclusively for my nighttime cityscape photography on the 5DM3 and I'm totally hooked on the dynamic range it offers. Here are some samples:
(https://flic.kr/p/pPez51)
(https://flic.kr/p/oR2uXb)
(https://flic.kr/p/pGxePD)
(https://flic.kr/p/pmJKnk)
(https://flic.kr/p/pmJpZn)
(https://flic.kr/p/pBaTjC)
"Once you go Dual ISO, you never go back!"