Show HN: Modify a Plustek 35mm film scanner to scan medium format
ebn0.net
ebn0.net
By the way, is the first image the Alewife T station in Cambridge MA? Looks really familiar.
I'll add though that if you're after scanning a big stack of negatives versus just one or two frames then this scanner method will probably take a lot than using a flatbed or a good SLR mount.