The technique worked surprisingly well and was performed often from around 1995 and thereafter using Kodak LVT and Cymbolic Sciences LightJet film recorders (not to be confused with LightJet printers) as the intermediate. It was common to scale-up 35mm to 4x5 size film, 4x5 to 8x10 size film, etc., and scan the intermediate to a larger TIFF file for wide format printing. Think trade show displays, vehicle wraps, and outdoor advertising.
I’m curious to know if any of these film recorders are in use nowadays, mainly due to scarcity of the required E6 film & processing. The 1620 Kodak LVT model could print to 16x20 type-c paper which could be used as the intermediate also.
Again, the process did work well.
Lately, I’ve heard of “artists” re-photographing inkjet prints to satisfy requests for high resolution files. Even that seems to be working for them.