I am using Lightroom 5 and I am shooting both a Canon 5D mark 111 and 1D iv i seem to be able to handle noise up to around 800 ISO , beyond that I can't seem to be able to clean it up like many of the pictures i see here. I now have a 500 f4 lens series 1. and I seem to be always needing ISO of 800 and above to get the Shutter speeds and Apertures I need. Any pointers would be much appreciated. Thx.


