I've been asked to comment on 4x5 negatives. It's such a broad topic from both the technical and business standpoint that I'll just start with a few things and respond if there are questions.
We offer them as the "heart" of our business because it's my idea of a "best of the options" for a photo preservation system. This is not to start a controversy! As there is no specific place here for "traditional" work where everyone would agree with me - and I'm totally outnumbered by digital advocates - it's just the way I do things and here are just a few of my reasons;
FREEZING TIME - a good copy negative stops the clock on deterioration. You can give the customer several hundred years to get the rest of the work done. That time span is, of course, not etched in stone either, but I do use "silver lock", a system from RIT that in essence amounts to selenium toning. You can learn a lot more about that from RIT.
HUMAN READABLE - A true preservation system has to be able to be seen without the aid of a machine of any kind. Hugh Downs did a great radio talk on this. I've got the transcript and the OK to publish it so may do that someday. 4x5 negatives not only fit that criteria, by virtue of being in use for nearly all of the history of photography, they have become a de facto standard in the "size" compromises. In my opinion, that means there will be no problems at all for anyone who wants to get one printed in the year 2210.
FILM SELECTION - with roll film it's a "one size fits all" copy process - but all originals are not the same! You need a film that does the best job of isolating the image from the sub and that is different in every case. Good books are available from Kodak on this so I'm not going to write one here - the films I use on a daily basis are Plus X, TMax 100, Pro Copy and Tech Pan. It's also very fast and easy to retouch the negatives with graphite or dyes to correct minor flaws.
SIMPLICITY - An MP4 type copy camera (lots of them are available today for less than $300 on Ebay) can cover any size original from a looking down the barrel of a microscope to doing 30x40's with no trouble at all. As many of you know I did invest a lot in digital equipment in the past year and have found that scanners are just not suitable for the variety of work we get in our daily orders. Even with the sizes that do work well, they are very very slow compared to shooting and processing a batch of 4x5 film. I find that making the negative first and using that to scan if or when I want to use the computer for retouching gives me the simplicity I need to get the job done without a lot of experimenting or miscues.
DATA STORAGE - 4x5's can be printed to 20x30's without batting an eye. I personally have several thousand stock negatives in my files. They are stored on hanging files in a few file drawers in a fire safe. I don't want to estimate how many hard drives or CD's it might take to duplicate that if you (an important if) - want to house big enough data files to give the same results in the final printing size options..
Your turn Tom! :-)
Jim Conway
Timemark Photo Conservators
We offer them as the "heart" of our business because it's my idea of a "best of the options" for a photo preservation system. This is not to start a controversy! As there is no specific place here for "traditional" work where everyone would agree with me - and I'm totally outnumbered by digital advocates - it's just the way I do things and here are just a few of my reasons;
FREEZING TIME - a good copy negative stops the clock on deterioration. You can give the customer several hundred years to get the rest of the work done. That time span is, of course, not etched in stone either, but I do use "silver lock", a system from RIT that in essence amounts to selenium toning. You can learn a lot more about that from RIT.
HUMAN READABLE - A true preservation system has to be able to be seen without the aid of a machine of any kind. Hugh Downs did a great radio talk on this. I've got the transcript and the OK to publish it so may do that someday. 4x5 negatives not only fit that criteria, by virtue of being in use for nearly all of the history of photography, they have become a de facto standard in the "size" compromises. In my opinion, that means there will be no problems at all for anyone who wants to get one printed in the year 2210.
FILM SELECTION - with roll film it's a "one size fits all" copy process - but all originals are not the same! You need a film that does the best job of isolating the image from the sub and that is different in every case. Good books are available from Kodak on this so I'm not going to write one here - the films I use on a daily basis are Plus X, TMax 100, Pro Copy and Tech Pan. It's also very fast and easy to retouch the negatives with graphite or dyes to correct minor flaws.
SIMPLICITY - An MP4 type copy camera (lots of them are available today for less than $300 on Ebay) can cover any size original from a looking down the barrel of a microscope to doing 30x40's with no trouble at all. As many of you know I did invest a lot in digital equipment in the past year and have found that scanners are just not suitable for the variety of work we get in our daily orders. Even with the sizes that do work well, they are very very slow compared to shooting and processing a batch of 4x5 film. I find that making the negative first and using that to scan if or when I want to use the computer for retouching gives me the simplicity I need to get the job done without a lot of experimenting or miscues.
DATA STORAGE - 4x5's can be printed to 20x30's without batting an eye. I personally have several thousand stock negatives in my files. They are stored on hanging files in a few file drawers in a fire safe. I don't want to estimate how many hard drives or CD's it might take to duplicate that if you (an important if) - want to house big enough data files to give the same results in the final printing size options..
Your turn Tom! :-)
Jim Conway
Timemark Photo Conservators
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