I have used a range of Minolta and Canon slide scanners over the years, usually with Hamrick's Vuescan since that supports color profiles for many types of negative and positive films, supports the IR channel where present, and has other neat tricks.
It took me a couple of years on and off to digitize around 500 films, then I wised up and borrowed a slide feeder, then wised up yet again and used a commercial service...