Going back to the old days where digital was not even heard of and 35mm might have been a related kin of the .45". Yet they took pictures. They did is using Camera Obscura (Dark Chamber).
The basic pinhole is a really simple - it is a shoe box with a small hole on one end and a sheet of sketching paper on the other end. In fact is it so simple that some scientists speculate that it was the first evolutionary step for the (infinitely complex) human eye.