The plane of focus is the only thing that is sharp. Put the plane of focus at infinity if you want distant objects sharp. Small details in the distance require the most resolution. Objects closer to the lens appear bigger on the film plane and don't require as much resolution for identification.
Make sure the lens is collimated and the film is held flat; infinity focus is very critical.
http://www.trenholm.org/hmmerk/TIAOOFe.pdf Pay attention to Chapter 5.
Make sure the lens is collimated and the film is held flat; infinity focus is very critical.
http://www.trenholm.org/hmmerk/TIAOOFe.pdf Pay attention to Chapter 5.