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UER Forum > Private Boards Index > Film photography > Here's a question that no one else is likely to ask. (Viewed 1682 times)
Detroit 

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4-aminophenol and 2-5% potassium hydroxide

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Here's a question that no one else is likely to ask.
< on 8/7/2007 4:37 AM >
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I have in front of me an almost full box of unexposed 4x5 dry glass plates from about 1910-1920. They were in among my great grandfather's belongings that my uncle recently decided to poke through. They are Imperial "Eclipse" Plates and the speed is listed as 650. The box is open but there are still 11 wrapped plates inside.

I also happen to have my great grandfather's 4x5 folder (cira late 1890s) and a glass plate film holder. The camera is in fine shape, the lens is clean and clear (rapid rectilinear), and the shutter still works quite well - and yes the original bellows are still serviceable although they are pretty dry.

I am very curious to try one of these plates to see if I can develop an image.(I did read online about one person online who claimed that she was able to develop an image on a similar plate.) There will certainly be a great deal of fog but I still might be able to get "something".

Unfortunately I have no idea what the modern equivalent to 650 speed would be.
I am very sure that it isn't ISO or ASA...

Does anyone have any ideas?

I think I might just expose for 12 iso and see what happens. I'll probably use Rodinal at 1:25 since it is such an active developer. I'm not too sure if a developer with better fog restraining characteristics would really make a difference in this situation.





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Holy Ginker 

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Re: Here's a question that no one else is likely to ask.
< Reply # 1 on 8/9/2007 1:53 AM >
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damn did you ever find out what the heck?

you might have to contact a photographic museum...seriously, what a rare find...




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west_end_chud 


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Re: Here's a question that no one else is likely to ask.
< Reply # 2 on 8/28/2007 10:20 PM >
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Are you sure the plates are coated? I would try as you said with rodinal 1:50, or maybee even a stand development of like 1:200.

Either way great find, if they develop unsuccessfully, you can always try your own emulsions, or tintypes. The cool thing is you have the plate holder and camera.

Happy shooting, and please post anything that turns out.






Detroit 

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4-aminophenol and 2-5% potassium hydroxide

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Re: Here's a question that no one else is likely to ask.
< Reply # 3 on 9/24/2007 7:48 PM >
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I am still planning on shooting before the weather turns, I have just been busy with some unexpected home renovations.

I'll post my results.

- Hmmm, I wonder if a monobath developer would work in this situation?




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Charlie_Dunver 


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Re: Here's a question that no one else is likely to ask.
< Reply # 4 on 9/27/2007 4:06 PM >
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My first reaction is to suggest that no developer available today will work well. Don't know the film/emulsion speed but it might be as low as 25, but the trick would be to research developers used in those days. You could get lucky, but the chances are pretty good that the plates are "dried up" after almost 100 years.

Good luck!

CD




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KublaKhan 


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Re: Here's a question that no one else is likely to ask.
< Reply # 5 on 10/14/2007 7:19 AM >
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Just shoot. This is about discovery. Or exploration.

Just please please post whatever you shoot.




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Charlie_Dunver 


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Re: Here's a question that no one else is likely to ask.
< Reply # 6 on 1/1/2009 5:23 PM >
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So, what happened?




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UER Forum > Private Boards Index > Film photography > Here's a question that no one else is likely to ask. (Viewed 1682 times)


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