I always asked to myself what happens if i put a mirror to the film holder and take a digital picture from it ? This question was my one of the first questions at digital analog mix subject. Than I discovered at f295 , it is possible to stitch many digital photographs and make a gigapixel picture.
Last saturday , I saw at antique roadshow program at bbc , there was a mirror from 100 years ago. Expert told that mirrors used at prephotography era to see the ULF composition in paper size.
May be someone can carry a plastic mirror and test the compositions.

Best ,

Mustafa Umut Sarac