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Topic: Possibly stupid question about green film
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Rob Young.
Phenomenal Film Handler
Posts: 1633
From: Cheshire, U.K.
Registered: Dec 2003
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posted April 27, 2017 02:46 PM
Barbara, I have seen Ektachrome home movie film fade to a mostly green colour image due to bad processing or finishing, although it is unusual and pretty consistent throughout a single roll.
Although, from your more detailed description this could be mould on the film, or excess humidity and / or heat adversely damaging the film base or emulsion over the years.
Don't forget that cine film was balanced for certain colour temperatures, so that if the film stock was daylight balanced, or tungsten balanced but with the camera's daylight filter in place, indoor scenes illuminated with tungsten or fluorescent light sources could appear excessively yellow or green. Just a thought, but worth considering the image content for clues. - is the dis-colouration consistent over the frame, or blotchy? Do daylight scenes look OK, but indoor ones don't?
However, I think Janice is wise to suggest some images before any advice is given regarding cleaning.
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Rob Young.
Phenomenal Film Handler
Posts: 1633
From: Cheshire, U.K.
Registered: Dec 2003
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posted May 01, 2017 11:40 AM
I had some Ektachrome 160 which also looked ok at first but faded to green over a few months. The fade was consistent throughout the reel, but looking at Barbara's images, I would guess that this is Ektachrome which has indeed been badly processed or finished and as a result has sections which have faded certain colours resulting in the green image.
So sadly, Barbara, I don't think any cleaning methods are going to help here.
As you point out, you can colour correct these digitally, which is good news in this day and age, but as for preserving the original film, I think it will only continue to degrade. Freezing is an option.
Sadly, if these films had been Kodachrome the colours would have looked as rich today as when they were photographed, but Kodachrome was a slow stock (40 ASA, so required a lot of light to produce good images). Interiors like the images you have shown would need to be on faster Ektachrome stock to capture decent images in lower light. So at the time it was a very sensible choice.
The blame here seems with the laboratory that processed the films back in the 1970's sadly...
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Osi Osgood
Film God
Posts: 10204
From: Mountian Home, ID.
Registered: Jul 2005
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posted May 01, 2017 11:48 AM
Melvin has a good point as, I have a few very early castle Films releases (one of them being, I believe, the very first, regarding the Hindenburg), and those very early black and white films have actually turned a light purple, film stock wise.
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"All these moments will be lost in time, just like ... tears, in the rain. "
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Osi Osgood
Film God
Posts: 10204
From: Mountian Home, ID.
Registered: Jul 2005
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posted May 02, 2017 12:15 PM
Rob ...
The series of posts was started because she was witnessing the "greening" of her films. I simply mentioned the other old films as, they, though originally, black and white, have turned purplish ...
Therefore, I mentioned it as the series of posts was about the color change on film stocks, albeit, her film stock has greening and my film stock has, well, "purpling" ![[Smile]](smile.gif)
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"All these moments will be lost in time, just like ... tears, in the rain. "
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