Quote Originally Posted by David Lyga View Post
I guess what frustrates me most about this film is the fact that Technical Pan was not so restriced and was only about one stop faster. Grain is on a par. Why could this film not have been made to accomodate a greater lighting range? - David Lyga
The concept of photography as applied here requires a range of crystal volumes. Microfilming requires a small volume. By excluding larger volumes and having a limit on useful smallnees one limits the range of volumes and thus the exposure range.