And they don't want to. Save your "breath."
And they don't want to. Save your "breath."Guys, you just do not understand...
Just a reminder.
Ilford and Kodak use IR sensors and IR sources to locate and identify film stock on the master rolls that isn't of full quality, so it can be excluded from finishing.
Those sensors and sources would be unusable with true IR film.
Can you elaborate? I don't understand how an IR sensor can identify bad quality. Thanks.
You really should read Bob Shanebrook's book on Making Kodak Film. Or buy PE or Prof Pixel a whole bunch of lunches!
Here is how I understand it:
In the manufacturing process, emulsion is coated on wide and long master rolls. To be usable, the master rolls need to be cut into the individual sheets and rolls. Unfortunately, though, there will always be small areas on each master roll which which have physical defects that need to be kept out of the final product.
The master rolls of film are scanned for those physical defects, and then any areas that appear to be defective (or at least outside of tolerance) are excluded when the roll is mapped out for finishing into individual rolls and sheets.
The scanning is done with IR sources and IR sensors, because the film isn't sensitive to IR.
And they don't want to. Save your "breath."
Interesting, so how do Fuji do it with Acros100? Isn't that slightly IR?
And heck how do they make regular IR without defects?
Thanks for the info.
Guys, you just do not understand the scale of the cost of making just the experiments to get set up for something like this! I've said it before. A simple experiment may cost on the order of $50 - $100 and that return must be realized in sales of the product. A failure in the experimental stage will double the cost.
In the mean-time, digital (sorry to say) can do a quite credible job in both color and B&W.
PE
I re-read the thread, the second post gives a link that specifically says the asian film Reropan 100 is maco film...
And another poster says maco will soon come out with some of their own.
What am I misunderstanding?
Also Maco/Rollie is now making a new 127, it's currently being re-sold under some weird Asian name,
Fifty to a hundred bucks?
Weee-hooo! I'll spot that myself in total if they'll do it!
Ok, ok, I know you meant thousands, just funin'.
And I agree. I look forward to using up my Efke 820 in my freezer but after that I think a converted IR digital cam is in my future. I wish I could do it with film, but I'm glad I can do it at all.
The "regular" IR required a whole bunch of specialized techniques, that only made economic sense in the context of the huge quantities of IR film that were used by the military and other industries (like forestry) for aerial mapping.
The relatively tiny amount of film that ended up in handheld cameras was just a happy byproduct.
So what was going on with Efke/Fotokemika? Their whole production scale seems to have been pretty small---I certainly don't think they were supplying any major military customers with IR film, though I suppose they may have inherited technology from someone who was.
I understand the objections raised by PE and others, and of course Simon's comments are dispositive wrt Ilford---but then how is it possible that a single small company with an outdated factory was able to do it? (Probably the outdated technology itself meant they didn't have the IR tools for quality control---but that in itself seems to prove that there are viable alternatives to those tools!)
-NT
There must be a workable answer. They were doing it...
Ken
These days he might mean 50 to 100 million.
correct tense...
And they went out of business low margin overall profit = loss...
The companies need to make a profit. Their receiver should have the IPR, does anyone want to buy & prototype the film again, and make a loss?
maybe...They went out of business because their factory fell down, if I remember correctly. They can't have been making much money---they weren't able to repair the factory, after all---but they maintained regular production of the IR film right up to the end and I don't know any reason to think they were losing money; do you?
-NT
So what was going on with Efke/Fotokemika? Their whole production scale seems to have been pretty small---I certainly don't think they were supplying any major military customers with IR film, though I suppose they may have inherited technology from someone who was.
I understand the objections raised by PE and others, and of course Simon's comments are dispositive wrt Ilford---but then how is it possible that a single small company with an outdated factory was able to do it? (Probably the outdated technology itself meant they didn't have the IR tools for quality control---but that in itself seems to prove that there are viable alternatives to those tools!)
-NT
The companies need to make a profit.
Oh dear...
I knew I shouldn't have asked. Never mind.
Ken
Id a payed a lot more & now feel guilty as we have squeezed a small supplier and lost several films thereby.
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