> Thats a good question. I wonder if the "virtual drum" was there to get over film holding issues (as in it physically bends the film) or that its a line scanner
Both.
> personally I think that technology has come on enough to move on from the imacon/hasselblad: https://emulsive.org/articles/opinion/scanning-film-the-20k-...
It's not - the issue that still remains is keeping the film flat, and this is especially problematic with smaller formats. With current solutions you can get the resolution but not the flatness, or you sacrifice something to get the flatness (e.g. ANR glass holders). It's the old glass vs glassless carrier debate, applied to a modern workflow.
I repeat myself: focus, DPI / resolution, dynamic range - these are the solved problems. In fact, modern medium format digital cameras are superior on all these factor. Keeping the film flat, however? Only drum scans and the Imacon "Flextight" solution do this well.
Of course, it depends on what you plan to do with the scans and for 99% of people the solution in the link above is more than good enough.
I've written about this previously https://leejo.github.io/tags/scanning/ # I'm going to add the fourth, and hopefully final, part in a couple of months time.