[View camera vs digital point-and-shoot] No, I think
5"*4" would be
adequate :-)
I had the opportunity to use 11"x14" film at one point (part of
medical imaging equipment, but it was obviously scaled up from 4"x5"
stuff.)
I love going to extremes, but I love using medium-format (2.25" x 2.25"
frame on rollfilm) equipment compared to large-format stuff (even
the "portable" large-format stuff like View Graphics are a bit awkward).
The monorail sits in the box for years at a stretch but my Mamiya
gets used a couple times a month.
All that said, if you want a decent-sized calendar then a digital point-and-
shoot is not gonna do the job AT ALL. A very high-end professional
digital camera (many thousands of dollars, but they can be rented)
could do OK at that enlargement size, but even with big flash cards
you'll find that you don't have room for many pictures at high resolution.
Film really is easier and cheaper in this case for this application.
Tim.