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  1. Replies
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    Sticky: Re: LF Pinhole - design and building

    Good job Barry! Hi Don!

    -Ned
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    Re: post alternative techniques

    I know this isn't a popular opinion, but I much prefer using the sun. UV lamps mostly for test prints.
    I suspect it might not matter as much if you use DN.
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    Re: post alternative techniques

    Very cool! Of course I love the salt print!
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    Re: Large Format Landscapes

    +1
  5. Thread: ROLL CALL

    by NedL
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    Re: ROLL CALL

    Couple times a week
  6. Re: Alt-Process Prints from Digital Negatives or Positives

    Feel like I've seen this before, maybe in color? But not this version. Very nice!
  7. Thread: post your trees!

    by NedL
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    Re: post your trees!

    Wow, I really love this one. Gorgeous.
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    Re: post alternative techniques

    Good luck!
  9. Thread: Paper negatives

    by NedL
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    Re: Paper negatives

    Perhaps someday you might enjoy making contact prints from them. I have many more contact prints from mine than scans....
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    Re: Mistaken Assumptions about Digital Negatives

    and, if the borders are clean using rubylith, it helps rule out the substrate

    (for my very long exposures salt printing paper negatives, rubylith eventually leaks too much UV and the borders...
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    Re: Mistaken Assumptions about Digital Negatives

    No personal experience with this, but seems like
    there may be other explanations besides ink opaqueness... thickness of the substrate, light piping in it, reflectivity of the inner surfaces,...
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    Re: soft focus landscape

    Very nice!
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    Re: post alternative techniques

    Thank you, very interesting!
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    Re: post alternative techniques

    That looks great Holden. You used a silver contact print as an inter-positive and then made a dup negative on x-ray film... was that because you wanted a different contrast or density range for...
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    Re: question about mid-1850s lenses

    Thank you! Amazing that it is still going!
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    Re: question about mid-1850s lenses

    Thanks Thomas.

    Abney's book(s) can be found on Google Books, also I think Burbank's or Hunt's manuals might have a description of the process. I think the original 1869 photographic news article...
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    Re: question about mid-1850s lenses

    Thanks to all, very helpful.
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    question about mid-1850s lenses

    Colonel Alexander J Greenlaw made calotypes in India in the mid 1850s, and particularly 1855 and 1856. I would appreciate any speculation about what kind of lens he might have used, and where it...
  19. Thread: Paper negatives

    by NedL
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    Re: Paper negatives

    This is excellent!
  20. Thread: Paper negatives

    by NedL
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    Re: Paper negatives

    Well done, Tony.
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    Re: The Kallitype Thread

    Nice one Holden!
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    Re: Large Format Landscapes

    Gorgeous!
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    Re: The Kallitype Thread

    That's really nice Thomas, lots of parts working together...
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    Re: post alternative techniques

    I love these and this one is wonderful... wish I could see what it looks like in person.
  25. Re: Alt-Process Prints from Digital Negatives or Positives

    Very cool!
  26. Re: Alt-Process Prints from Digital Negatives or Positives

    Very nice! This is somewhere along the Colorado River?
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    Re: Large Format Landscapes

    I love the feeling that the air is filled with light
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    Re: post alternative techniques

    +1 I really enjoy seeing them too. I'd like to know what kind of vellum you use. Thanks!
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    Re: Large Format Landscapes

    Lovely!
  30. Thread: post your trees!

    by NedL
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    Re: post your trees!

    Beautiful and a great story all's well that ends well! That will make a gorgeous print.
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    Re: Printing Soft-Focus Negatives

    I make nearly all my prints using split-grade, and it's interesting to see how different the thinking is. I think about my prints in terms of highlights, highlight detail, mids, mid separation....
  32. Re: Alt-Process Prints from Digital Negatives or Positives

    Very dramatic photograph, I'll bet it looks beautiful in person!
  33. Thread: post your trees!

    by NedL
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    Re: post your trees!

    Very nice!
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    Sticky: Re: LF Pinhole - design and building

    That's great Barry! 110 degrees sounds about right --- get close, then closer!
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    Re: post alternative techniques

    That looks great and I am really enjoying seeing these. I hope you will continue to share them with us!
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    Sticky: Re: LF Pinhole - design and building

    If you are interested in the math behind macro pinholes you can find the Prober-Wellman formula here. The "optimum" does not fall off all that fast as you get closer to the camera, for example if...
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    Sticky: Re: LF Pinhole - design and building

    I always check with the sun, but they're always simple boxes or cans and easy to look inside with the top off. Thanks very much for starting this thread, I'm looking forward to reading it!
    ...
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    Re: Show off your Large Format camera!

    Of course I would be very happy to participate in a thread like that!
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    Re: Show off your Large Format camera!

    Barry, there's this thread: http://www.largeformatphotography.info/forum/showthread.php?95145-Post-yer-pinholes

    Most of my pinholes are on 5x7 or larger, so it's LF that way, but I'm not sure how...
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    Re: Show off your Large Format camera!

    I want to try a 0.1 or even a 0.05 mm EMS aperture on a macro pinhole camera, if Earl has any that small. Been meaning to write him about it. I'm thinking of making an 8x10 or 11x14 camera to make...
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