As I recall; there have been some threads awhile back regarding
submission of “slides” for juried shows + previous threads about
preferences for digital cameras + threads about alternatives to
light diffusing domes. I stumbled upon this link of products that
claims to be able to convert digital image to “slide”.
In particular, digital images from the Nikon Cool Pix into slide
format using a product from a company called "Happenstance"
http://www.shortcourses.com/how/slides/slides.htm bore down into
this link for details.
Usual disclaimer …no personal interest financial or
otherwise…never used or tried it…