I have to give an illustrated lecture to a group of about 400 people. My talk involves speaking about and showing images that I have documented with my 4X5 camera. When speaking to smaller groups I have used a set of matted 16X20" prints on two easels with lights, and this has worked well. This approach will not however work for speaking to larger groups.
For a presentation to a large group I have two options:
(1) Scan my 11X14" portfolio prints and project jpegs with an LCD projector as part of a power-point presentation, or:
(2) Make 35mm transparencies (i.e. photograph my prints) and project them optically.
Which route should I take??