Didzis said:
Well, I'm not really that sure. For example, new, commercially produced radio valves are still available at pretty decent prices, about $12 or so.
Made in the former Soviet Union - at an old Soviet tube (valve) making plant. Yes? Other than that, just NOS and tested pulls. But I've been out of high-end audio for awhile, perhaps Sovtek has competition now.
Think about what a valve is made of. Glass. Wire. A vacuum. Dielectric base of some kind. And some plating chemicals. Nothing esoteric. Even so, pollution produced such that there can be no tube manufacturing plant in the US - probably not in the UK either, yes?
http://en.wikipedia.org/wiki/Vacuum_tube
I hope you're not really going to suggest that there is a huge demand for valves and they are used just about everywhere, so the scale keeps the price down or that valves are easier to make than film.
As to 'how easy' it is to make valves as opposed to film, I'd have no idea. It would be like asking if it is easier to make a tank or a violin. I personally can't make either one. However, I do have some concept of what both are made of. One uses seriously poisonous and heavily regulated chemicals and creates incredibly polluting biprodocts. One does not. Color and B&W film are made with dichloromethane, for example. The EPA classifies it as 'highly carcinogenic' and one of the most commonly-released industrial toxins on earth. It is part of the reason that Rochester, NY is consider the most polluted city on earth. Do you think that the EPA (or its counterpart in other industrialized countries) will license a new factory to make film?
http://science.howstuffworks.com/film3.htm
http://uspirg.org/uspirg.asp?id2=8822
In 2000, more than 100 million pounds of cancer-causing chemicals were released to the nation's air and water, with dichloromethanean industrial solvent that is also used in the manufacture of photographic filmthe most frequently released carcinogen nationwide.
Or a brand new dot-matrix printer can be purchased for $200. If you want to get really fancy, you can get a 24-pin dot-matrix printer complete with an USB connection for $450, your suggested price for three rolls of film. I'm not quite sure that producing three rolls of simple ortho film is just as expensive as making a fancy dot-matrix printer. Typewriter ribbons cost from $5 to 10, and typewriters are not very widely used. And I haven't heard of hobbyists coating their own typewriter ribbons, either, although I've heard that about film. Really, it's not that a few obsolete technologies have somehow managed to survive; actually, quite a few obsolete technologies are still alive and well, although firmly in the niche market.[/quote]
Name one of them made in a newly-built factory, with new tooling. Do you think anyone is 'making' typewriter ribbons? I think they have a mountainous stockpile of them. Could be wrong, but I seriously doubt they're being made somewhere.
In any case, none of them require access to such esoteric and proprietary chemicals as film, particularly color film. I have been reading with interest the comments that one can get chemistry by the boatload at Art Chemicals and other places. And indeed, it is true. Do you suppose they make those chemicals themselves? They do not. They sell them, from the Indian and Chinese and US companies that do make them. And do you know who they make those very specialized chemicals for? The photographic film industry, that's who. When those factories go silent, the companies that supply them will make other things. It is that simple.
I'm not talking about the chemicals needed to develop film. Yes, you can develop film with coffee and salt water and so on. I mean make film. You tell me where you get
You can throw some brass on a lathe and turn a cylinder, make it into a boiler, create a nice little puffer-belly locomotive engine. The ingredients are simple - what is difficult is having the tooling and the knowledge to do it. Film is both difficult to make and difficult to source the parts for.
Let's take a recent Fuji patent on a new color film of theirs:
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A silver halide photographic material comprising a support having provided thereon at least a silver halide emulsion layer, wherein the material contains at least one metal complex contained in any of groups A, B and C: group A: an optically active metal complex; group B: a metal complex comprising a metal ion selected from the group consisting of transition metallic elements belonging to period 4 to 6 and group III to XI of the Periodic Table, and typical metallic elements belonging to period 4 to 6 and group XII to XIV of the Periodic Table, and at least one ligand represented by the following formula (I): ##STR1## wherein Z represents an atomic group to form a 5- or 6-membered ring; A represents a carbon atom or a nitrogen atom; X represents O.sup.31, S.sup.31 , NR.sub.1 R.sub.2 or COO.sup.- ; R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group; R represents a substituent; and n represents 0 or an integer of from 1 to 6; group C: a metal complex selected from a porphyrin complex, a porphycene complex, a phthalocyanine complex, a chlorin complex, and a bacteriochlorin complex.
Tell me, where does one source "ethylene diaminedisuccinic acid" these days?
Sure, B&W film is a lot less complex to make. Same with very early autochromes and that sort of thing. I still think even if they can be made, the cost will be prohibitive for all but the well-heeled, and everyone who uses it will have to accept that it will be as low in quality as it was at the turn of the last century. And for what? To prove a point?
I'd be really hard pressed to believe that a technology so popular as analogue photography could simply disappear without a trace within a couple of decades.
They won't. Plenty of companies will squirrel away large stocks of them on spec, and then sell them to the highest bidder over a long period of time. I never said it would disappear without a trace in a few decades. What I did say, and I stand by it, is that color film will no longer be manufactured commercially within the next two years, and B&W film may last a decade before Ilford, et al, pull the plug.
That doesn't mean you won't have film. It means it won't be made any more on anything resembling a meaningful scale, and if it is made at all, it will horrible quality and cost the world.
Now - having said that, I see that Ron Mowery has indeed got further with making film than I had thought - and that may have to modify my position, depending on what he does next. I seriously doubt that even he can make color film, but I remain hopeful.
I found this interesting...
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