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Recent content by MatthewDunn

  1. MatthewDunn

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    For a given UV unit, will Cyanotype be faster or shorter than Pt/Pd?

    Ok. Thanks @revdoc and @nmp. I will post back with the results of my experiments. Thanks for your assistance.
  2. MatthewDunn

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    For a given UV unit, will Cyanotype be faster or shorter than Pt/Pd?

    I just received my chemistry and am about to attempt a minimum time to "black" test. On my UV unit, Pt/Pd is about 4 minutes. Just wondering whether to start around that time, much shorter, or much longer, for instance. Thanks in advance, Matthew
  3. MatthewDunn

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    Delta 3200 at EI3200 in D-76 or Xtol?

    Given that the recommended meter setting is, in fact, 3200 (first sentence of your attachment), it doesn't seem like what I would think of as a push. If it was me, I would probably opt to shoot it at 1600 and then develop using D-76 1:1 for the recommended time for 3200 using a standard Ilford...
  4. MatthewDunn

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    Delta 3200 at EI3200 in D-76 or Xtol?

    I'm confused. You are shooting the film at its box speed recommended rating. Where is the push?
  5. MatthewDunn

    Just moved from CA to MA and looking for a darkroom

    Do you have a mailing list that we can get added to? Or should we wait for updates here? In either event, I think this is a sorely needed resource and I suspect you have a lot of fans cheering you on in this effort.
  6. MatthewDunn

    Just moved from CA to MA and looking for a darkroom

    Yeah, this is definitely good news for people in the area. Do you have a link or any other additional information we can look out for? A name? Thanks!
  7. MatthewDunn

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    Simple question about TF-5 Fixer

    http://photoformulary.homestead.com/03-0200.pdf Look at the top of the second page. I know this doesn't clearly answer your question, but I think the clear implication from the instructions is that, as this is pre-mixed, as long as you keep things in the proper 1:3 working solution, you are...
  8. MatthewDunn

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    Making an UV enlarger

    Great. Sounds like someone has thought this through. Don't/didn't want to derail the thread, but just wanted to make sure this was considered, which it clearly has been. :)
  9. MatthewDunn

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    Making an UV enlarger

    I know and understand how to use dodging tools, thank you. I was asking how you use the tools safely. Unless the length between your hand and the actual dodging implement is significantly longer than normal, I would still worry about undo levels of UV exposure. But that is why I ask. Maybe that...
  10. MatthewDunn

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    Making an UV enlarger

    How do you do burning and dodging under UV safely? I am not trying to be smarmy - that is a legitimate question (albeit perhaps a dumb one). You can protect your eyes with goggles, but assuming you are moving your hands under a UV light for an extended period of time, any concerns about...
  11. MatthewDunn

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    [Kallitype] Ammonium Dichromate won't mix/is streaking

    Yes, one film, one developer, one agitation routine, one temperature - assuming you keep everything stable on that end, I think you are good to go. Just ordered the 4x5 step wedge. Will ping back with more information. :)
  12. MatthewDunn

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    [Kallitype] Ammonium Dichromate won't mix/is streaking

    I see what you are saying. That actually seems like something that would be good to have - a set of 4 4x5 negatives of various densities. Assuming you are more or less content to stick to one film, you could probably go from process to process and make life significantly easier by just throwing...
  13. MatthewDunn

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    [Kallitype] Ammonium Dichromate won't mix/is streaking

    Yeah, I thought I knew what I was doing, but I have been way overcooking on time. So, I think we say that, for as long as I am shooting FP4+ in Pyro-HD and printing on Arches Platine, my exposure time is 1 minute. Inclined to print the "ring" around a step-wedge in the center to get a better...
  14. MatthewDunn

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    [Kallitype] Ammonium Dichromate won't mix/is streaking

    Drydown is complete. Keep in mind that these are untoned and that I typically tone with platinum. Based on that, I am thinking that 70s is a pretty "correct" time for me (with 60s probably being equally fine). Thoughts?
  15. MatthewDunn

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    [Kallitype] Ammonium Dichromate won't mix/is streaking

    OK. 4x5 processed normally (other than for time) for 20 mins drying. Will report back as soon as I have more details. Thanks, Andrew. A million thanks.
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