great graph paper resource

Discussion in 'B&W: Film, Paper, Chemistry' started by Mike Wilde, Apr 9, 2008.

  1. Mike Wilde

    Mike Wilde Member

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    I have been fine tuning the development parameter on a home brewed version of Harvey's 777, and came to realize that my data would be a lot easier to chart if I used semi-log graph paper. 'Where would I find that?' was my next thought. I turned to Google, and bing- up it came:

    http://www.csun.edu/science/ref/measurement/data/graph_paper.html

    A very handy little tool.

    I have been using this developer for about 4 months now, and so far, am very happy with it. I find that it works very nicely in high key studio lighting situations, as well as landscapes that include portions of sunlit snow.

    I know that there are more main stream developers, but I find that D-76/HC110/xtol sort of look quite similar to me.

    I have worked through PMK and Pat Gainers vitamin C variants in the last few years as well. I guess that it is just a phase I am going through.

    I know that 777 has been discussed extensively here and on other sites a few years ago, so I will hold off on any comments on how I use it until I can add beyond what has been said in the past..
     
  2. Kirk Keyes

    Kirk Keyes Member

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    Excel can do semi-log graphs as well.
     
  3. patrickjames

    patrickjames Member

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    Mike I would be interested in the formula you are using. I have been using the Panthermic 777 but it is expensive and I doubt it is the same formulation as Harvey's 777.

    Could you post it?

    Patrick
     
  4. CBG

    CBG Member

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    May or may not be same as what you are looking for but the 777 formulas I've run across. I am note sure of authenticity.

    Harvey's 777 Fine Grain Developer / Germain's PPD Fine Grain Developer

    Distilled water (125° F) 700 ml
    Metol 7 g
    Sodium sulfite 70 g
    Paraphenylene Diamine (base) 7 g
    Glycin 7 g
    Cold distilled water to 1 liter

    Use without dilution.
    Replenish with same formula.
    Use full strength.
    Replenish with stock.
    Works best after it has had 5 or 6 rolls run through and has ripened and stabilized.
    Develop 9 to 15 minutes at 75 º F.
    Keeps almost indefinitely.
    May or may not be the same as the famous Harvey 777.

    Best,

    C
     
  5. Mike Wilde

    Mike Wilde Member

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    MJW's run with Harveys 777.

    per the interest, here is what I have been up to. It is an attachement, because it goes on and on
     

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