history
history
I was working a summer job in a photo lab when Kodak discontinued Ektachrome E1 in favor of E2/E3. The studio pros mostly shot 8x10 and were used to its characteristics.
Many stockpiled the old formulation and the labs were forced to keep a second line running for several years to accommodate their customers. E1 was slow and had a very limited, low contrast color palette. You can see how it looked if you read issues of Vogue or similar from the 1950's and early 1960's. No one would go back to using a film that looked like E1 these days.
Kodachrome has its faults, the most serious being a tendency for skies to go magenta. Like the E1 palette, fans just seem not to notice.
About 10 years ago I switched to shooting all color negative after I started scanning in the film. The increased latitude and freedom to adjust the output mean that many prized characteristics can now be achieved through other means. In the photo lab we had detailed procedures to alter film speed and color balance during processing, since the transparency was the end product that was sent to the printer. I'm sure people are glad they don't have to deal with this limitation anymore as well.
Film longevity is an issue and given Kodak (and others) misinformation over the years about this it is impossible to really know what will last. Even digital prints make questionable claims and the testing done by Wilhelm uses accelerated techniques which may not adequate reflect the real world over time.
What can you do, life consists of compromises.
I suppose Kodak could offer to sell it's process information to one of the specialty film makers, and they could continue to make it as they have done emulating other discontinued films. I doubt the demand would be great enough even for them. At one time there was a competitor to Kodachrome made by Dynacolor I think, so recreating the technology is not really that difficult. It is the processing that needs to be tightly controlled.