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  1. #11
    Michael Slade's Avatar
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    Sandy,

    Thanks for the tips. I'm trying to boost the RH in an attempt to get a good print out of a semi-flat negative. It's worked well on the small test-prints I've done. The larger prints that are 12x20 negatives, I don't have a room I can coat in that I can both control the humidity and have a space large enough for the sheet of paper I'm using.

    So...it's always a trade-off. Maybe I'd better spend some time refining the negatives next time eh?

    FWIW...the 6ml of solution that I thought would be a problem with the 'puddling', doesn't seem to be bronzing and it's washing away. Next time I coat I'll brush until the puddles get absorbed and see how that changes anything.

    EDIT: Just did a full-size print. I don't like the puddlng. I'll make sure that I brush till it's absorbed. The 'non-issue' was on the edge of the test prints, clearly the real print was much more 'puddly'.
    Last edited by Michael Slade; 12-07-2007 at 05:01 PM. Click to view previous post history.
    Michael Slade

  2. #12

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    I don't understand; if you have puddles, you obviously have way too much solution; so cut it back by half and try again maybe ? You are not trying to soak the paper completely, just coat it... I usualy put just enough per coat so that once I have finished brushing it (4 or 5 passes of vertical/horinzontal) the coat is perfectly even and the brush is getting 'dry', and I just have to stand the paper 1 minute before I apply the second coat with slightly less solution.
    Then another minute stand, a couple minutes of hair dryer and it's ready to expose. Strangely, contrary to everything I read, the 'hot/warm' hair dryer works a lot better than the 'cold'; seems to me to 'hot' air steams some of the moisture of the solution into the paper and I get better contrast that way...

  3. #13
    Michael Slade's Avatar
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    The last batch I did I used 5ml for each coating. Seems to be about right. I don't think cutting it down by half, 6 down to 3, would give me enough liquid to spread around (12x20).

    5 worked well...second coat going on just as first coat is dry to the touch.
    Michael Slade

  4. #14

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    Quote Originally Posted by Michael Slade View Post

    So...it's always a trade-off. Maybe I'd better spend some time refining the negatives next time eh?
    With VDB the negative makes all the difference. There is really no way to make a great print unless the negative has a very long DR. I like about log 2.5, or even slightly more.

    However, there is also no way to get maximum Dmax from the process unless you are working in a room with fairly high RH, above 50% for sure, and above 60% if you can get there. Alternatively, you can humidify the paper in some type of small tent before coating, and then dry the paper in the same environment.

    Sandy

  5. #15
    Michael Slade's Avatar
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    I had not heard that drying the paper with a high RH made a difference in the Dmax. I am quite happy with how dark the blacks are going.

    Consider that my coating/processing area is seperate from the exposure unit, which is seperate from my drying area...all within my home though. I do not know if I can control RH effectively within the entire house. I am considering adding a humidifier to my HVAC system to see if I can't raise it a bit higher
    Michael Slade

  6. #16

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    Quote Originally Posted by Michael Slade View Post
    I had not heard that drying the paper with a high RH made a difference in the Dmax. I am quite happy with how dark the blacks are going.

    Consider that my coating/processing area is seperate from the exposure unit, which is seperate from my drying area...all within my home though. I do not know if I can control RH effectively within the entire house. I am considering adding a humidifier to my HVAC system to see if I can't raise it a bit higher
    Have you measured the reflective Dmax of your prints? You should be able to get a Dmax of at least log 1.45, and with optimum conditions and double coating, perhaps as high as log 1.55.

    Assuming a suitable paper of course.

    Sandy King

  7. #17
    Michael Slade's Avatar
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    I'll pull out the densitomiter today. I used Arches Platine, which I have heard is a fairly suitable paper.
    Michael Slade

  8. #18
    Michael Slade's Avatar
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    Doing some more 12x20's...have a weird red streak through the print. Hair-dryer dried the print, and the red streak is still there.

    Thinking about a re-wash/re-fix. Weird.
    Michael Slade

  9. #19
    Michael Slade's Avatar
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    I blogged my make-shift process HERE.

    The weird red-streak is 90% gone. I wonder what it is.
    Michael Slade

  10. #20
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    Michael, those images look great from the digisnaps.

    I can relate to your makeshift process and working conditions.
    I live in a tiny apt... well actually I live in a darkroom that doubles as a living space

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