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Sir Godfrey Hounsfield invented the computer tomograph (CT). He conceived the idea in 1967.
Working for EMI (yes, that's the music label), he constructed the EMI scanner Mark 1 in 1971.
Initially, the scanner was constructed to perform brain scans only. The first scan was performed on a 41 year old lady who was shown to have a cystic tumor in the frontal lobe.
40 years ago, in 1979, Godfrey Hounsfield was awarded the Nobel Prize in Medicine, together with Alan M. Cormack. His name is eternally preserved in the density scale for CT imaging, which is measured in Hounsfield units (HU) and scaled between air (-1000 HU) and water (0 HU)
This EMI scanner is on display in the Science Museum in London.
Since I got my own scanner for film, I never bother doing scans at the labs, but I recently had a few rolls developed at Costco, where I always develop my negative films, and I asked them to scan the pictures because I didn't had time to do it.
When I checked the images on the screen, I thought the pictures weren't that good and I blamed the camera, so I decided to scan some of the same pictures my self to see what happens.
The pictures coming from my scanner, the Epson V600 were much better, the colors were more natural, the image sharper, and surprisingly with more details.
It's funny, because the V600 cost about $250 and the industrial Noritsu costs about $15,000. Noritsu and Fuji industrial scanners are the most common scanners in any photo lab.