Hey there, trendland.
I had said "contact print." This means I'd be putting the emulsion side of the 35mm negative in contact with the emulsion side of the Ektachrome sheet. I'd end up getting about 6 negatives on each sheet of 4x5 Ektachrome, with no enlargement. If it was 8x10, I might get 30 or so negatives contacted on a sheet. By contact printing, there's no enlargement, so the image comes out the same size as the negative.
Interestingly enough, Photo Engineer has said that one way to print slides with an analog workflow is to do essentially what you were talking about, which would be to project the slide onto 4x5 Portra, develop that, and then make your print from that with a contact print. That workflow uses the Portra as an internegative. Kodak used to make an internegative film for just this purpose, but it was discontinued some time ago. Portra is probably the closest thing we have to a low-contrast negative film suitable for internegatives.
Regards,
ME Super
OK ME Super - it was a little misnderstanding - never mind. Well " contact" printing I know - is from 35mm onto 35mm film. I remember cheap offers of 35 mm
contact holderrs from plastic for the ground and acrylic/plexiglass to the topside just at that time when most photographers have forgotten what contacs are!
The reason for cheap offers - I guess.
OK but why not contact printing onto sheeds (if it is economical from costs).
The main advantage from contact printing in general are the minimal losses of information inside each original negative/positive what has to be dublicated.
To me - the losses caused from enlarger lenses are quite higher. That means with optical workflow you will have less quality (even if you hold the scale ).
The next step (of much more losses) is digital workflow via scanning.
But contact printing is a smart method to hold the max. of information.
In the past I often wondered about bw photographers with giant formats.
16x20 inch for example..

! Untill I understand that some spoke about enlargements of 16x20..

!
But indeed 16x20 sheed Films (and larger) are still avaible in bw! And indeed some shot 16x20 and larger! How is the workflow with enlargements? How big have that industrial enlargers have to be?
How big have that darkrooms have to be?
The key seams to be the following : Some photographers higher their formats (they changed from 20x30 cm cameras to 16x20inch cameras) because they want to have bigger scaled prints!!!!

DAMNED ....and how big is enough then for them?
It is such simple : They want a size bigger than 20x30cm = 16x20inch (40,6 x 50,8 cm) because they make contact prints (with extraordinary quality) - Aha - I was a little afraid about the dimentions of enlargers

!
Contact printing is the key!
with regards