[Frameworks] 35mm slides from digital files

[Scott Dorsey]

35mm B&W reversal is not a standard process, no.  It used to be, but
it's not a thing you will experience today.

However, if you start with a negative image and run it into the photoplotter
and develop it as B&W negative, you wind up with a positive image.  It can
take a little tinkering but you might find a lab willing to do that for you.
It will require cranking the gamma up a little on the processing.

I have always just done slides like that on Ektachrome because the labs
are all set up to do that automatically without any special setup.  The
blacks are not quite as black as with B&W stock, and the fading is much
greater I suspect.
--scott