Difference between RC and Fiber paper printing times

Discussion in 'B&W: Film, Paper, Chemistry' started by Atari1977, Feb 19, 2013.

  1. Atari1977

    Atari1977 Member

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    So in my lab at school we have a lot of Ilford RC paper, so to save on the fiber paper I've been using for work prints. Today however, I tried printing something on Ilford fiber and the exposure time that worked on RC, underexposed on fiber. I'm kind of a darkroom noob, aside from a copy of "The Print" which doesn't cover RC paper, so is this right?
     
  2. tkamiya

    tkamiya Member

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    In my experience, Ilford FB paper requires quite a bit more exposure than RC - at least twice. FB Warm tone requires even more than regular FB.

    These paper react very differently in terms of exposure and contrast. I treat them as entirely different print jobs. Yup.... it's right.
     
  3. Jeff Kubach

    Jeff Kubach Member

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    Yes FB does take longer than RC. Run a few test strips.

    Jeff
     
  4. polyglot

    polyglot Member

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    Different papers have different sensitivities and contrasts. Generally you cannot take your print settings from one paper to another, except for the dodge/burn sequencing and relative exposures.

    I have found that the Kentmere papers are very consistent between RC and FB though, which makes things easier. MGIV papers definitely differ.
     
  5. DAK

    DAK Subscriber

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    In my experience RC and FB exposure times are quite close. Time in the print developer is twice as long for FB compared to RC.
     
  6. DAK

    DAK Subscriber

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    I forgot to say that was my experience for Ilford RC and FB papers.
     
  7. winger

    winger Subscriber

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    I'll agree with this, too, for Ilford.
    Using RC for quick work prints does give me an idea of the contrast I'll need, at least to start, and a ballpark idea of where to start for exposure. I still do test strips when I make FB prints, though - just saves money and time in the end.
     
  8. tkamiya

    tkamiya Member

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    That's interesting.... my experience is quite opposite. I initially planned to do that but the results were so different, I had to abandon it.... I'm glad it works for you though!
     
  9. Newt_on_Swings

    Newt_on_Swings Member

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    I find it weird to do a print on rc then to fiber, its easier to just cut a test strip and then do a print on a full size sheet. If I am working with larger papers, I make test strips out of a sheet thats smaller so I dont have to destroy a sheet of the larger format. And also print a section of the image to evaluate tones before going for the big sheet. Lately I have been getting a bit lazier about this, but I can still guess pretty well what exposure is needed and be close.
     
  10. MattKing

    MattKing Subscriber

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    I wouldn't be surprised to find that your developer choice may also affect the issue.