But a window is not going to "blow-out" faster on Super-16 7218 compared to 35mm 7218. If that were true, Vision-2 500T '18 would be super high-con in Super-8 and super low-con in IMAX! The only difference, as I said, is that there may be some residual fine detail in extremely hot or dark areas on the larger areas that can still be seen on a larger negative, but don't register as well on a smaller negative because the grain size can't resolve the detail.
In terms of color depth or complexity, yes, it seems that a larger negative can resolve more subtlety in colors because they devote more grains to that color -- so a patch of wildflowers in Super-8 in a wide shot may render as a blob of yellow, let's say, but in 65mm, you will see more variation in colors. But this is only true of real-life objects made up of a variety of subtle color shades, not a single patch of a single color like on a chart, which should render the same in different negative sizes.
Also one should mention the amount of bleed that takes place. although negative has anti halo backing (reason why all negative have black coating on back side) bleeding on the negative or internal lateral diffusion on the negative plane takes place IRRESPECTIVE of which negative you use. but manifests itself much more on smaller negs. if for intsance you have that window with a wire mesh in front and the window is way over exposed, the wire mesh will not show on 8mm or on 16mm but might come up on larger formats, simply because the hilight or the halo effect of over exposure will cause lateral diffusion to eat into the information closest to the hilight.
Hope I have not complicated it further for Saleem...
by the way I have heard of some dp's who asked kodak not include the anti halo coating in their negs, kodak will gladly remove it for a fee.
Elias Haswany
Mena based DP