B&W Paper Reversal Prints, Examples?

Discussion in 'B&W: Film, Paper, Chemistry' started by Fragomeni, Aug 29, 2012.

  1. Fragomeni

    Fragomeni Member

    Jul 16, 2010
    San Francisco, CA
    Multi Format
    Hi all,

    I'm wondering if anyone has any examples or links to examples showing prints made on reversal processed B&W paper (enlarging paper). I've seen several references to work done using this process but I can't seem to find any examples and I'd be interested in seeing some.

    The process has been discussed at length numerous times in this forum so no point in going over it again here. If curious, just use the search feature. Also, people tend to get off track and end up talking about contact printing paper negatives. Thats not what we're talking about here so lets stay on point.

    I'm looking specifically for examples of prints made by reversal processing B&W paper. Prints can be made from either printing slides or from paper exposed in camera and then reversal processed to produce a positive print.

    Hopefully someone has some examples! Thanks!
  2. Oxleyroad

    Oxleyroad Subscriber

    Jun 26, 2007
    Formally Oz, now MI USA
    Multi Format
    Hi Francesco,

    I have done exactly this. I use my old film reversal chemistry in trays. The paper is Ilford MGIV Deluxe Glossy. Development temp 20°C under normal safelight conditions. 90 seconds in first developer, and 60 seconds for all other baths. I turn the lights on in the darkroom for the second exposure, and give it 90sec before I run throught the second developer.

    Developer - Dektol 1:1 (nothing added)
    Bleach - 9.5g potassium dichromate, 12ml 98% sulfuric acid plus water to make a litre
    Clearing bath - 100g sodium sulfite plus water to make a litre
    Fixer - what ever I had lying about.

    Orwo UN54 35mm reversal processed
    60 sec, 0Y130M f4.5. Lacking contrast

    Same frame as above
    90sec, 20Y80M f4.5, Too much contrast.

    Orwo UN54 16mm reversal processed
    90sec, 10Y100M f4.5. Still a little too much contrast.

    a few of the 16mm frames enlarged. I did not sandwich these frames to the paper so not as sharp as they could be.

    Hope this is of some use to you.
  3. johnielvis

    johnielvis Member

    May 21, 2010
    Medium Format
    no real good examples that I've had.
    the reason is the low dynamic range that is represented on the paper is too small.

    I like the high contrast,but you don't get to display a whole lot on the paper since a normal scene will have much more contrast range than you can hope to display on the paper--I've had 1/2 success with color paper reversal processed as black and white but the dmax is very low--you get PAN sensitivity, faster speed, but the darkest "black" is dull grey--I have not yet done the next step of intensifying that paper to make the full black totally black--too much effort to try (just now).

    however--from what I see- the direct positive harmon gives you similar speed and results without using dichromate--it looks like it can display more dynamic range than regular enlarging paper too--although it is still lacking in that department--this is why everybody must preflash to even further tame the contrast response. this would be what to experiment with and is what I intend to use when I build the very very large camera (projects...projects...) that I have planned....ilford seems to do good with that stuff and may improve it in the future (increased speed???? pan sensitivity????) hey...that would be nice.
    Last edited by a moderator: Aug 29, 2012