Thanks for this. 12800 ISO looks like 3200 on my 5D3..... I see a full 2 stops ISO improvement over the 5D3. At least 2 stops. 25000 ISO is very usable. Most of these were at F/5.6 at those higher ISO's...F/4 glass will be the new King......Fast Glass will be heaven.....m awesome. Just awesome. Cant wait to get this
Thanks for posting
I just want to dig this post of yours from the past, where you seemed to be happy at lower isos.
But I definitely get it being a fellow high iso shooter myself.