In article , Mr. Man-wai
Chang wrote:


I don't know much about photography films.

clearly.

And you might need to talk
about the size (length x width) as well as the resolution of the senors
and films!

yep.

But isn't film molecular level?

everything is.

Is your claim based on traditional size of film, which is 135?

size doesn't change anything. film is very lossy and much less accurate
than digital.

But why can't we use a bigger film then?

we can. there are larger film sizes, namely medium format and large
format, but then you also have to use a larger digital sensor to match.

Should we always compare 135
film against CMOS sensors of different size?

always the same size format. otherwise it's not a valid comparison.