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    Copal No. 3 repair help.

    My Copal #3 is in need of servicing: its slow speeds are very slow, and it tends to stick on 1 second. I have quite a bit of experience servicing Compur shutters (On Kodak Retina models) but I know...
  2. Re: How do I achieve this look? Lens or movement?

    Agreed. This is much more a lighting question and not so much about a particular lens. I believe that on 8x10 Polaroid you could use any one of at least a dozen lenses (aperture wide open) that would...
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    Re: Cloudy silver bath, is it usable?

    And Quinn's 2019 edition of 'Chemical Pictures' covers the subject most thoroughly. John Coffer's book - though extremely valuable in many respects - doesn't cover the topic as thoroughly. In fact,...
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    Re: Cloudy silver bath, is it usable?

    OK, that's great! I'm glad you are using the right tools to make correct adjustments. Well done.
    You don't need to filter anymore. If the bath reads 1.074, then you are good to start making plates....
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    Re: Cloudy silver bath, is it usable?

    Yes, the cloudiness is almost certainly the result of too little AgNO3 in the bath to reach equilibrium.
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    Re: Cloudy silver bath, is it usable?

    Can we see a photo of it in its current condition, please?
    There's probably nothing wrong with the distilled water you bought, as long as its actually distilled, and not just "demineralized" water....
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    Re: Cloudy silver bath, is it usable?

    Ethan,
    When you added more AgNO3, did you measure the specific gravity of the bath to get it adjusted to the correct SG? Do you have a hydrometer to make these measurements? Did you measure the SG...
  8. Re: Wet plate collodion spectral sensitivity?

    I've had some varieties of yellow Daffodils photograph as BLACK!
  9. Thread: Developer

    by paulbarden
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    Re: Developer

    I'm confused now - your opening post said you were modifying the Bostick & Sullivan recipe.
  10. Thread: Developer

    by paulbarden
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    Re: Developer

    If you have Coffer's manual, its in there: page 40 has the base formula, and page 42 has the warm weather modification notes. Publishing the recipes here may be a violation of JC's copyright.
  11. Thread: Developer

    by paulbarden
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    Re: Developer

    Kent,
    I have no idea how well the B&S developer will work when fiddling with the recipe, although your assumptions about diluting + adding acid are the right idea, in principle. The B&S developer...
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    Re: post your trees!

    And I think that's a very interesting approach to photographing a forest! Beautiful images you're producing, kudos.
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    Re: post your trees!

    Thanks very much, I appreciate the kind words :-)
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    Re: post your trees!

    Thank you very much Antonio!
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    Re: post your trees!

    This was my "Clyde Butcher moment" this morning, up to my armpits in the Marys River.
    Photographed on Ilford Delta 100 film using the Intrepid 4x5 and my 100mm Wide Field Ektar lens. Exposure was 12...
  16. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    Like you, I get my 1.5mm wet plate glass from the local dollar stores. However, I have found that there are at least a dozen different styles of frame in the 8x10 size, and every one of them is a...
  17. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    I don’t regard this as a “screw-up” since most of us are custom cutting plates to fit our holders.
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    Re: Wet plate focus confusion.

    Maybe I've just been lucky, but I have not had issues like this with my Petzval lenses. WYSIWYG is how they've worked for me.
  19. Re: Wet plate collodion spectral sensitivity?

    Yes, they do so intermittently.
  20. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    Ari, by the time you've added VAT (assuming you have to add tax) and the shipping from Italy, you might as well get one of the others that have a better track record. The Chamonix plate holder is...
  21. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    Be careful - I have heard more than one person say that the dark slide on the Stenopeika is so close to the emulsion plane that it can scrape the surface of the plate when removing/reinserting it....
  22. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    I like my Chamonix holders a lot. They're well built and VERY easy to use. I have the 4x5 Lund plate holder and I dislike it a LOT: its clumsy in design and it isn't easy to use at all. I don't know...
  23. Re: Wet plate collodion spectral sensitivity?

    "Stepping up"??
  24. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    I'll have to weigh my 8x10 Chamonix. Its quite light.
    But I can't see any advantages to the Orlov holder that merits the extra $100. You''ll have to report back to us about how well it works in...
  25. Re: Wet plate collodion spectral sensitivity?

    This should answer your questions: https://www.lundphotographics.com/index.php/blog/tips_techniques/spectral_sensitivity_of_collodion_film.html
  26. Re: Equipment needs, cameras and lenses. Making, buying, adapting

    Can we see photos of it? I'm curious how its constructed.

    PS: did that 8x10 wet plate holder really cost $395??
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    Re: Wet Plate - A Beginner's Experience

    Yes. The videos that accompany the book are tutorials specific to the book content. John's YouTube videos are more overview than instructional - the DVDs that support the book are very specifically...
  28. Re: Waiting for collodion to clear, a few questions

    This is a good practice for anyone working in the medium. You should have a "stock" bottle of salted collodion, and a working bottle from which you pour plates. A pour bottle containing 200ml of...
  29. Re: Waiting for collodion to clear, a few questions

    What Kent says is very true, but you shouldn't compare the properties of brand new home-made Old Workhorse with the Old Workhorse B&S sells: theirs has been aged for weeks before you get it. In fact,...
  30. Re: Waiting for collodion to clear, a few questions

    Hi Ethan.

    You're encountering a problem that's not uncommon in wet plate photography documentation: the importance of the small details of the various processes. You can take any single piece of...
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    Re: Wet Plate - A Beginner's Experience

    My understanding is that the main reason Quinn rewrote Chemical Pictures was to fill in the many gaps in the previous edition. Ari is correct: there are many seemingly basic questions that are not...
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    Re: Wet Plate - A Beginner's Experience

    Oh, of course! Duh! I should have made that connection lol
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    Re: Wet Plate - A Beginner's Experience

    I don't recall anyone using acrylic for this purpose, but I think its pretty safe to say that acrylic should be entirely inert and won't create problems in the silver bath for the 4-8 hours needed to...
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    Re: Intrepid 8x10 experiences?

    Careful what you ask for.
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    Re: Intrepid 8x10 experiences?

    My 4x5 Intrepid (2018) has serious warpage of the plywood components now. Its still usable, but I wonder for how long.
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    Re: Wide Angle RR

    Nope, this is the one with the three levers that act as a kind of "swinging waterhouse stop".

    204990
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    Re: Wet Plate - A Beginner's Experience

    Questions for you: what developer did you use, and how long did you leave it on the plate before washing it off?

    Yes, learning how to flow a plate with developer is indeed quite tricky. But you...
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    Re: Wet Plate - A Beginner's Experience

    1: Since I have a Lund travel tank, I keep the silver bath in it at all times, except when filtering or performing maintenance. There's absolutely no reason to keep the silver bath in the fridge, as...
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    Re: Wide Angle RR

    Thank you, Andrew. It is a very fine lens when used as intended.
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    Re: Wide Angle RR

    A couple of wet plate images made with the Darlot wide angle hemisperique:

    This one was with the lens at f16:https://www.flickr.com/photos/paulbarden/32701083468/sizes/k/

    This one shows itís...
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