Quote Originally Posted by RalphLambrecht View Post

Try it by all means. Actually, I remember Kodak showing a sequence of up to 12 stops without any quality loss. I tried to behave myself with saying 8 stops. I don't have an 8-stop example around at the moment, but I attached a 6-stop example. If you look close, you'll see that the ASA 400 film (left) exposed at EI 6 (right) gives more shadow detail and shows no degradation in the highlights. Overexposure is no problem, but you may notice a slight increase in grain with 35mm film.
I have some MF negatives of Yosemite taken after a snow storm, Tri-X shoot at 400 and developed in XTOL stock solution. One of Half Dome has a range of 12 stops. How do I know? I used my Nikon F100 in the spot meter mode and a 300mm lens to take light readings. The prints I made with simple dodging and burning were very good but not great. So I took the negatives to Per Volquartz for a day long class in printing. With a lot of work I produced a stunning photograph with the clouds slightly darker than the snow next to it on Half Dome and truly great shadow detail.

Yes, I got a 12 stop range on film and I see that 14 stops is possible, but it takes work to get it to print on paper that does not have that wide a range.