I don’t have a proper macro setup or extension tubes so I haven tried the digital camera method. There are some promising rigs out there that automate the process but pricey. Lots of people doing that with simple rigs.I used to have a Minolta Dimage Film Scanner and loved it. But, the tower unit I was using finally died and Ireplaced it with a laptop, not thinking that it would not have a SCSII interface. So, I gave away the film scanner and have been looking for a replacement.
Have you ever used a film duplicator that uses a film holder and tubes on your DSLR so you just shoot photos of the film?
The place I used to work had some really high end scanners that couldn’t be used because they were SCSI. Fortunately mine are USB and work well with the Vuescan software. I don’t think the manufacturer’s software works on the latest OS.