I use an OM System OM-5 mark 2 and the Olympus 30mm macro lens for scanning. The OM-5II has a high resolution mode where it shifts the sensor to combine multiple images into a 80MP raw file. Now obviously that's 4:3 and not 65:24, so I had to crop a bit but it's still enough. I did size down the images a bit to be able to upload them, but I don't think that that extra resolution really contained any more detail.
The detail of medium format film is pretty crazy though. Previously I used an Olympus E-M5 Mark II whcih could do about 50MP in this mode, and when filling the frame on normal medium format square photos there was still detail missing. If I moved the camera closer and scanned the center of the frame at the closest distance, there was still plenty of detail left that wasn't kn the big scan, at least with Kodak Gold. With 35mm negatives I will usually get all the detail, though a few rolls like Ektar 100 and Ilford Pan F 50 did have me doubting whether I got everything.


