A friend uses D800E and largely shoots at 100 ISO. For low light, she increases the exposure up to 5 stops instead of increasing the ISO. Her reason is:
"I've found it has the same impact as increasing the ISO but without the noise problems. As a result, I normally don't even consider changing the ISO, although I'm constantly adjusting the EV."
Nikonians®, NikoScope® and NikoniansAcademy™ are trademarks owned by Nikonians.org.
Nikon®, Nikonos® and Nikkor® are registered trademarks of Nikon Corporation.