> No, they’re just from using the Q-View magnetic developer & iron nanoparticles, which I don’t think give fine grained enough detail for floppy disks unfortunately and then just imaged with a cheap usb microscope.
I wonder if this could be improved with, say, a Canon 6D and macro lens with a lossless image format. Better resolution, fewer artifacts.
Yeah that's a good point. I've got an Olympus BHM metallurgical microscope now along with the camera attachment for an SLR which I should try out for this.
Definitely give it a shot and let us know! I'm really curious about this and it really should be possible as long as you can visualize the magnetic field.
I wonder if this could be improved with, say, a Canon 6D and macro lens with a lossless image format. Better resolution, fewer artifacts.
For comparison's sake (several orders of magnitude physically larger), apparently it's entirely possible to visually "read" vinyl records: https://www.wired.com/2003/02/press-scan-to-play-old-albums/