Quote Originally Posted by thegman View Post
This is a good article showing Portra 400 at 1600 and 3200:

http://www.twinlenslife.com/2010/12/...portra400.html

Given the option, I'd still push in processing, but it does do pretty well it seems without a push.
The examples shown, of the facade of the Pantages, is a poor example for the OP.

Taking pictures in the light of high luminance commercial facades is very different from stage light settings.