That's probably black and white film. And even though the detail would technically be there, the grain prohibits extreme enlarging too much. So probably closer to 200mp. An 80 megapixel camera file is super clean and enlarges very well. Stitch 2 or more 80mp files together and your into 5x7+ film range.
Also, you would need to use a lens that resolves the maximum lp/mm of the film.
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