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On 21 Jul 2005 17:53:38 -0700, "
wrote: Bruce Hoult wrote: In article .com, " wrote: As I recall, only negatives were returned to the press, not the film. One must admit that this procedure allowed time for "enhancing" and/or retouching of the press photos, whether or not such was actually done. lolol There apears to be a slight .. uh ... gap in your photographic knowledge, which renders your whole point ridiculous and invalid. I've never thought of myself as an omni, far from it. I'll admit to not knowing as much as I should about film writers in general. [snip] The enhancement issue aside, you can't look at the images on the film without developing the film. This chemical process turns the film into negatives. The exposed, but not developed, film doesn't exist anymore. When you have your pictures developed at the local photo shop, the negatives you get back with your pictures are the same physical film you gave them, but it's been through a chemical process. Photographic paper is kind of like film. They take the negative film, shine a light through it and focus the image onto the photographic paper. When the photographic paper is developed, what you get is a negative image of the film negative, which is a positive image that you see as a photograph. For slide film, I don't know if it develops directly into positives or if there's another step involved where they basically make a negative of the negative and stick it into a slide case. I never developed slides at home when I was playing with developing my own film back in the 70's. Whether NASA returned the original film as negatives or kept the original negatives and returned copies or something that had been produced by manipulating the originals is a separate issue and one that I know nothing about, not being involved in the aerospace industry. -- David |
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David Ball wrote in
: For slide film, I don't know if it develops directly into positives or if there's another step involved where they basically make a negative of the negative and stick it into a slide case. I never developed slides at home when I was playing with developing my own film back in the 70's. One of the slide films, Ektachrome?, develops as a positive; it's a complex process because the dyes are in three layers. WYSIWYG. --Damon |
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On Fri, 22 Jul 2005 01:54:40 -0500, Damon Hill
wrote: One of the slide films, Ektachrome?, develops as a positive; it's a complex process because the dyes are in three layers. WYSIWYG. ....Correct. However, they're finding that Ektachrome, unless stored in at least a halfway controlled climate, tends to discolor and the dyes separate a *lot* quicker than Kodak expected. My pop has a whole ****load of slides from his stint in Korea that I've got to dig up a slide scanner and salvage before they get any worse than they already are. OM -- "No ******* ever won a war by dying for | http://www.io.com/~o_m his country. He won it by making the other | Sergeant-At-Arms poor dumb ******* die for his country." | Human O-Ring Society - General George S. Patton, Jr |
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OM om@our_blessed_lady_mary_of_the_holy_NASA_researc h_facility.org wrote
in : On Fri, 22 Jul 2005 01:54:40 -0500, Damon Hill wrote: One of the slide films, Ektachrome?, develops as a positive; it's a complex process because the dyes are in three layers. WYSIWYG. ...Correct. However, they're finding that Ektachrome, unless stored in at least a halfway controlled climate, tends to discolor and the dyes separate a *lot* quicker than Kodak expected. My pop has a whole ****load of slides from his stint in Korea that I've got to dig up a slide scanner and salvage before they get any worse than they already are. Exactly what I'm planning to do; going to be a big job. I'm considering one of the Nikon or Minolta units. --Damon |
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David Ball wrote:
On 21 Jul 2005 17:53:38 -0700, " wrote: As I recall, only negatives were returned to the press, not the film. snip When you have your pictures developed at the local photo shop, the negatives you get back with your pictures are the same physical film you gave them, but it's been through a chemical process. That doesn't hold true when you submit a request for a few photos from the middle of a 100-foot-long reel of positive film. In that case, negatives must be developed and handled separately. This process is not inexpensive. snip Whether NASA returned the original film as negatives or kept the original negatives and returned copies or something that had been produced by manipulating the originals is a separate issue and one that I know nothing about, not being involved in the aerospace industry. It's my understanding that NASA returned copied negatives, not originals. Whether said copies had been creatively altered from the originals is to some extent TBD. Challenger's Ghost |
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