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  1. Re: Spectral sensitivity of collodion and orthochromatic film

    Adding to the already excellent replies here: Short answer=yes/no. Ortho film is more sensitive than collodion, but does not see red. Depending on the exact formulation, ortho film is more or less...
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    Re: Hyper-Sensitizing Slow Emulsions

    �� Fun is the best reason of all to do what we do (whatever the heck it is we do!).
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    Re: Hyper-Sensitizing Slow Emulsions

    The easiest way to get over ISO 2 would be to make a faster emulsion (at least with dry plate).
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    Re: Wet / dry plate photography

    As they say: There are no dumb questions. This one comes up often. Here's the simplest answer I know. With the exception of specialized formulations, all emulsions are "negative" emulsions. The...
  5. Thread: future of B&W

    by dwross
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    Re: future of B&W

    I'm not worried that B&W paper will disappear altogether anytime soon. However, the offerings are limited. The different listings are mainly different size sheets and package sizes. Some variety in...
  6. Thread: future of B&W

    by dwross
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    Re: future of B&W

    Nothing could be easier than making silver gelatin printing paper, so there's that. (The exception [to date] is VC paper.)
  7. Re: 2019 LightBox Symposium for Alternative Process Photography

    I know I'm looking forward to it! I attended the last altphoto symposium in Astoria a couple of years ago. The wonderful people and photography are still with me. These kinds of get-togethers are far...
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    Re: Errata in silver gelatin paper book

    Thanks guys. You've actually made me feel a little better. The supportive thoughts are greatly appreciated.
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    Errata in silver gelatin paper book

    A mortified mea culpa as I fall on my errata sword. Eagle-eyed reader Alexander Elkholy has found two mistakes in my new book, The Handmade Silver Gelatin Emulsion Print. One of them is horrifying—a...
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    Re: Paper For Contact Printing

    To that list I'll throw in handmade silver chloride paper (and chloride-bromide paper), arguably the newest "alt" process. However. I'll also second the suggestion of contact printing on Ilford...
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    Re: Processing Dry Plates

    https://www.freestylephoto.biz/1464106-Kodak-Rapid-Fixer-with-Hardener-Makes-1-Gallon
    https://www.freestylephoto.biz/16241-Arista-Universal-Liquid-Rapid-Fixer-12-oz....
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    Re: Mistaken Assumptions about Digital Negatives

    Well worth repeating. (emphasis added to OP)
  13. Thread: Quality Papers

    by dwross
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    Re: Quality Papers

    Yes, unfortunately photography can be an expensive endeavor. Digital cameras, inkjet printers and ink are all expensive. Any good printing paper, silver or inkjet, is expensive. However, if a...
  14. Thread: Quality Papers

    by dwross
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    Re: Quality Papers

    Hi Bob,

    I agree completely with your observation about what curators, gallerists and collectors are looking for. I wish I had had your advice when I was starting out. Of course, most photographers...
  15. Thread: Quality Papers

    by dwross
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    Re: Quality Papers

    :D I feel a whiff of extinction breeze myself sometimes.

    There is no doubt that older photographers are less inclined to learn new skills. Digital has been a steep enough climb! Let's face it....
  16. Thread: Quality Papers

    by dwross
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    Re: Quality Papers

    Very true. And Ilford makes outstanding variable contrast paper. However, if the goal is be free of worry that a material might disappear on you, then handmade materials are the way to go.
  17. Thread: Quality Papers

    by dwross
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    Re: Quality Papers

    You might consider making your own silver gelatin printing paper. It's lovely, simple, relatively inexpensive, and it can never be taken away from you. You can choose your own base paper color and...
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    Re: Using Dry Plates in Hot Weather

    It's unlikely the gelatin will melt-- at least, no more likely than that the film will. However, either could fog a bit in the heat. Use an ice chest, just don't use ice. Put the plates, film, and...
  19. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    At some point, yes. The price should be in line with the ebook prices on Chris Anderson's two books. I don't have any say on pricing or release dates, so that's about all the info I have. You might...
  20. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    Ah, but I'd bet it died happy cat :-).

    Thanks, Sandy, for the info -- an aspect of our artistic history I was totally unaware of. There is a lot to know and learn from over a century and a half...
  21. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    :)!
  22. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    That's a very generous offer. Thank you. I'm putting the finishing touches on material supplementary to the book right now. When I'm done with that, I think I'll do a deep dive into the Carbro...
  23. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    Were you thinking about the Carbro process? That has fascinated me for a long time. Bromide paper without a hard supercoat is one of the requirements (I think). The paper is easy enough to make,...
  24. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    There are so many chemical overlaps in the alt processes family, I'd think a good store would be more than willing to stock a small inventory, if asked. Increasing awareness is probably key. Most...
  25. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    Hi Dave,
    I certainly understand the fun of the source hunt, but it's also nice to find success at the end of the trail! I was in The Camera Store in Calgary last month. They have a very decent...
  26. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    Thanks!! Everyone. I don't have sufficient words to express my appreciation for the supportive thoughts. Kind words from friends is the real coin of the realm.

    Agregov: The Focal book jumps off...
  27. Re: New Book: The Handmade Silver Gelatin Emulsion Print

    Thanks, guys! The supportive words mean a lot to me.
  28. New Book: The Handmade Silver Gelatin Emulsion Print

    I am very proud to announce that my new book, The Handmade Silver Gelatin Emulsion Print, Creating Your Own Liquid Emulsions for Black & White Paper, published by Focal Press, will be released in...
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    Re: A thread for images made with dry plates

    Gorgeous image. You've captured the COLD!
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    Re: Glass plate holder construction

    Aside from getting the perfect plate holders as a birthday present, the easiest and least expensive option is to purchase some old wood film holders and convert them to single plate holders. Works...
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    Re: Convenient Dry Plate coating table

    I do use food film with a light misting of water and it pretty much eliminates a big cleanup, but next time I will definitely try using more water on the film! Less emulsion going under the plates...
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    Re: Convenient Dry Plate coating table

    Very elegant! I love anything that doesn't have to be put together each time you coat. Are the side walls permanently attached? (very nice illustrations, too!)
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    Re: Printing Out Paper

    If you do give it a shot, I'd love to hear how it went and see the prints. Unique book possibilities, indeed!
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    Re: Printing Out Paper

    Thanks! Here's the link: http://thelightfarm.com/cgi-bin/htmleditiongen.py?chapter=POPBasics and http://thelightfarm.com/cgi-bin/htmleditiongen.py?chapter=POPBasicPlus

    It is very straightforward...
  35. Re: How to test for unknown film emulsion speed / ISO ?

    Hi Pere,

    I developed TLF#2 with Steigmann's in mind (first, I had to resurrect Steigmann's from the old lit!), so I don't know what the speed would be without it. Based on other emulsions, I...
  36. Re: How to test for unknown film emulsion speed / ISO ?

    I would be remiss if I didn't say that great variations in speed from batch to batch are totally avoidable. Consistent time and temperature will eliminate all but a fraction of the variability. The...
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    Re: Are there any Print Out Papers (POP) left?

    http://thelightfarm.com/cgi-bin/htmleditiongen.py?chapter=POPBasics

    Hope it's useful!
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    Re: Are there any Print Out Papers (POP) left?

    Hi Arne, I most definitely will! d
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    Re: Are there any Print Out Papers (POP) left?

    Oy. Small apt in the winter. Been there. You definitely need a engaging activity. Emulsion making to the rescue :).

    Making paper is easier than dry plates or film, not because of the basic...
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    Re: Are there any Print Out Papers (POP) left?

    Hopefully the altphotoproducts website is just down for a bit. Also, it looks like the Formulary is not carrying plain baryta paper currently. I'll use this as an excuse for a plug about learning...
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