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Thread: 8x10 tray processing

  1. #1

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    8x10 tray processing

    I am new on 8x10. I want to do the procese in trays. 1 by 1 sheet. The question is if I can process more that 1 sheet with the same developer. If that's the case , do I have to change time developing?
    Thank you very much

  2. #2
    Foamer
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    Re: 8x10 tray processing

    Developer is usually rated as so many square inches of film per ML. I use HC-110 and know it can do about 80 sq. inches with 500 ml of developer. That breaks down to four sheets of 4x5 for me.


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  3. #3
    David Schaller
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    Re: 8x10 tray processing

    I’ve done two sheets at a time in one liter of working solution with Pyrocat HD and D76. I would think you could do a second sheet after the first if you didn’t wait too long.

  4. #4
    Drew Wiley
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    Re: 8x10 tray processing

    ???? ... I have no problem tray dev 6 or more sheets of 8x10 per liter any number of dev options: pyro, HC-110, 76, etc. And I'm talking even about extremely fussy predictable applications like separation negs, densitometer measured. But that's shuffle dev all at the same time. Once that's learned, I don't get the point of only one at a time. That's just looking for a downhill result.

  5. #5
    Vaughn's Avatar
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    Re: 8x10 tray processing

    Quote Originally Posted by Jose Marques View Post
    I am new on 8x10. I want to do the procese in trays. 1 by 1 sheet. The question is if I can process more that 1 sheet with the same developer. If that's the case , do I have to change time developing?
    Thank you very much
    The technical sheet for each film (and many developers) will give you this information. generally, if you do one at a time (a good way to learn about the effects of developing times/temp), you will increase your development time with the next sheet . Reading the tech sheet for D-76, for example, they do not recommending using the developer a second time if it was used diluted 1:1. Using D-76 straight, it will develop four 8x10's per liter. If done one at a time, one needs to increase development time by 15% after every sheet of 8x10.

    This is what we did at the university when processing four 4x5s at a time in racks in a liter of straight D-76. The liter will process 16 sheets of 4x5, and after developing 4 sheets, we increased the time for the next four sheets by 10 to 15%.

    If you develop four sheets at one time in a fresh liter of D-76, you may need to add a little time compared to doing only one sheet in a fresh liter. Drew -- any feedback on that?
    "Landscapes exist in the material world yet soar in the realms of the spirit..." Tsung Ping, 5th Century China

  6. #6

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    Re: 8x10 tray processing

    One thing to consider it the type of trays to use. I use 2 types: Kodak Duraflex which have totally flat bottoms and Paterson trays which have shallow troughs running along the bottom of the tray. With the Patterson trays, it is easier to put your fingers under the film. I started out using Patterson trays in the 1970s but then over years have come to prefer the flat bottom Kodak trays. When I started out to process 8x10 film, I would one single sheet at a time. When I was comfortable with tray processing 8x10 film, I went to processing 2 sheets at a time. Once comfortable with processing 2 sheets at a time, I found that I could easily process 6 sheets at a time, but it took me probably processing 50 sheets to to get to that point. I have never had a problem with scratches on conventional film. As for X-Ray film, can't say the same... Personally like to use developers or dilute them to have my processing times between 10 to 20 minutes.

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