When did digital surpass film in IQ?

Started Feb 16, 2017 | Questions thread
The Davinator
The Davinator Forum Pro • Posts: 20,313
Re: Film's main problem?

D Cox wrote:

rurikw wrote:

I once read that the main problem film has to contend with is that the substrate scatters light which introduces blur no matter how fine the grain so if someone invented some miracle material that would approach the quality of optical glass the ability of film to resolve detail and maintain contrast would improve drastically. Hmm... How about glass plates then?

There are two problems: irradiation and halation. See diagram:

Slow fine grain film with good anti-halation dye scatters light much less than a fast emulsion. This is partly because slow films have thinner emulsion layers.

Kodak AHU Microfilm or Tech Pan have very little scattering, but they do have some.

Glass plates were worse than films.

Thanks for sharing the diagram.

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