December 26, 2019 12:13PM
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Registered: 16 years ago
Posts: 679
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Let me add just a couple of thoughts re; 1938 Kodachrome slide.
In 1938, and even through the early 40's Kodachrome was in its early infancy. Kodachrome processing was the very most challenging and difficult film in the world to process. Even the manufacture of it was the most complex film in the world ( at that time ).
1. One of the early complaints was it's contrast, and by it's very nature of slow speed, it's lack of shadow detail. Think about that a bit. Kodachrome was noted for being a great film in bright sunlight. But not chosen often for work in dull or low light situations. Almost all old slides using Kodachrome, had full sunshine on the subject, or "Sunshine Behind the back of the photographer". Why? Lack of ability to record shadow detail.
2. Kodachrome was a multi-layer B&W film. During processing using several different B&W developing steps, for different layers, colors were added one base color at a Time.
3. If a very small processing error, was induced in the first B&W development, Density would be effected. and shadow detail, and blown out highlights could occur. Even the alkalinity level ( pH ) of the removal of the anti-halation coating made a difference .
4. Up until the mid 40's ( pre war ) Kodachrome was still being "Tweeked" in both the film manufacturing, and the processing. Two rolls of film, shot at the same day and subject, but processed several days apart, very likely would have subtle differences . As Kodak Labs were the ONLY ones processing this film, as usage grew, Kodak had to also grow it's processing facilities, designing, engineering, and building all new processing machines, resulting in "Growing Pains" = Inconsistencies. Large users (i.e. National geographic ) quickly learned to ask that all rolls be processed in the same "Batch" at the same time.
Just putting this out for thought. Those of you that shot Kodachrome know how "good exposure" was critical. and what happened with 1/2 stop off. Also most of us was spoiled by the improvements to Kodachrome by the 50's.
Also, a scanned Kodachrome needs a different post scanned color profile added then other slide films.
Does all this apply to this slide? Might, might not. To many veritables to ever know. But it just might shed some observed light on the subject.
Dave.
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