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  1. Replies
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    Re: How Early Could It Have Happened?

    My understanding was that the chokepoint was fixing the image, initially with salt but it was really the identification of Hypo that did it. If so then 1819 would be the date.
  2. Thread: Spotting

    by cowanw
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    Re: Spotting

    Very close to neutral, but dependent on mouth health; about 6.8 on average.
  3. Re: Advice needed for stuck lens retaining ring, please

    Your retaining ring has 4 slots. You could make a tool with apiece of wood, like a 4 inch piece of 2x4 and nail in 4 nails whose heads fit the slots with just enough exposure to catch the slots. That...
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    Re: Preparing for a book

    It means the pages finally need to be in the PDF form for which your designer will have the Adobe PDF program or similar. Likely you will give your designer the files in TIFF form and they will put...
  5. Re: Large Format Soft Focus Portrait Image Website

    Very consistent paper colour if not toned.
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    Re: Help identifying a lens

    ;)
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    Re: Devere 504 timer advice

    I cannot be sure of a home made timer but I know of two users that use other than Devere timers. My Omega timer works fine.
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    Re: Help identifying a lens

    There likely will be Series ll f/4.5 Eq To CUS 10. 4 in
    And yes it probably should read Eq FOCUS, but it is very clearly a T not an F.
    And odd that one is painted and the other not
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    Re: A refrigerator for storage

    Yes ground radiation is a real issue over time.
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    Re: Help identifying a lens

    As it happens I have that exact lens serial number 22960
    10.5 inch f 4.5.
    Mine is painted black but with plenty of brass showing underneath. No soft focus either.
    The beauty ring says Cooke...
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    Re: A refrigerator for storage

    I am pretty sure that my chicken and frozen pizzas do not defrost when the freezer is cycling. Do you have a reference for damage to film in frost free freezers?
    The Conservators of Fine Arts and...
  12. Re: Multivolume Catalog of 19th century photographs

    If you are thinking of just the United States, then you might be thinking of
    The Origins of American Photography. Yale University Press, 2007. ISBN 9780300122862
    and
    An American Century of...
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    Re: What do I need to use this enlarging lens?

    You need as per http://www.khbphotografix.com/NewUsedEquip2.html
    421-102 Lens Cone 4" (for 150mm lenses) (requires lens disc)
    421-008 Flat Lens Disc with 50mm hole
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    Re: who do you use to publish your books?

    As Tin Can has mentioned I published a book recently. Over my business life I had collected a number of portraits representing a number of historical events, persons, and techniques. Some of them...
  15. Re: Recent results: warm-tone paper and developer, selenium toning

    Hold alt and type 0162. Who knew?
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    Re: New Book: Eleventyone Portraits 1841 to 1950

    Awwkkk! Don't do that. I paid extra for the non skid surface. :eek:
    I will mail you a print of the image.
    I too have seeing troubles and sought out a readable colour and font that suited, for that...
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    Re: New Book: Eleventyone Portraits 1841 to 1950

    Thank you Tin Can and Ari.
    Some of the images are mildly important from a historical perspective and I will be very pleased if I can make them at least a little bit available to the record.
    And...
  18. Re: Were Verito 18 lenses made in different barrel lengths?

    Yes there are different lengths as well as different placement of mounting flanges.
  19. Thread: Giday!

    by cowanw
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    506

    Re: Giday!

    Your dialect would be well recognized in the Ottawa Valley up here in Canada.
    Giday
    Bill
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    Re: New Book: Eleventyone Portraits 1841 to 1950

    Yes the Hobbit did popularize the word, but it is actually a real word from old English. When i was writing I started with one hundred images, but over the six years of writing it got a bit bigger...
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    Re: New Book: Eleventyone Portraits 1841 to 1950

    I have added the introduction of the book as sample pages, which may help to demonstrate what the point of the book is (apart from over 100 great prints of portraits)

    205651

    205652

    205653
    ...
  22. Re: Sharing mounting the sinar copal shutter on arca swiss cameras

    Just to complete my contribution I have also taken the largest Packard shutter, with a 5 inch hole and sandwiched it between two stainless steel serving dishes (from a nearby restaurant supply store)...
  23. Re: Sharing mounting the sinar copal shutter on arca swiss cameras

    I have done much the same with a Cambo setup but, because all my lenses are on Cambo boards, I also did the reverse in the front and ended the lineup connected to a third Cambo standard to which the...
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    Re: E-Bay: What can I do If the buyer won't Pay?

    I have not really got a dog in the fight except fairplay. The lens maker makes no reference to Summicron, only the commentariat.
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    Re: E-Bay: What can I do If the buyer won't Pay?

    Gentle Irony alert!
    That seems a bit strong. I don't think this is the hill to make a stand on. The patents on the design are expired. The labeling of the lens has nothing Leica about it. Are you...
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    Re: Linhof Ball-Head Mystery...

    like this?
    https://www.flmcanada.com/product/flm-hb-100-half-ball/
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    Re: Durst 138S - asking for detailed instructions

    Well The knob that sticks out straight to the front is the one that fixes the table. I have one of these with a foot peddle and one has no peddle but they both have the knob in front to tighten. You...
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    Re: Durst 138S - asking for detailed instructions

    Just to be sure, because of the skirt, can you access the knob under the table That is number 54 in this manual on page 14? https://usermanual.wiki/Document/DURST20L138Smanual.1047907326/view
    If...
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    Re: Durst 138S - asking for detailed instructions

    Does the front knob not tighten and fix the table height?
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    Re: New to me printing issue

    Perhaps Burning with a number 5 filter locally will bring out the branches without affecting the sky.
  31. Re: Is the obsession with analogue gearing an obstacle to art?

    I apologize, I did not want to diminish you in any way. But I guess I do keep my answers to a minimum and I am happy that several others have expanded on the essence of what I was trying to say, in a...
  32. Re: Is the obsession with analogue gearing an obstacle to art?

    Sounds like you want to get really bigly good and digital fast at making super duper art; but still maintain permanent connection between that imprint and the moment that it captured.
    Get really...
  33. Re: Is the obsession with analogue gearing an obstacle to art?

    Bobab, if film is not for you then don't use it; What's the problem?
  34. Thread: June Portraits

    by cowanw
    Replies
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    11,630

    Re: June Portraits

    I forget if there is any movement with this lens but raising the front standard may put the sharp centre point higher in the image. Or is it lower; no I think it is higher.
    Ah! Late to the game.
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    Re: Reciprocity Test with ND1000 Filter

    In a reciprocity situation?
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    Re: how to calculate exact bellows compensation

    At 40 pounds a pop I would consider a 4x5 reducer and Horseman meter or exposing B&W and developing to check or some old Polaroid film any of which might cost 1-2 sheets.
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    Re: Reciprocity Test with ND1000 Filter

    I wonder if the reliance on red light affect reciprocity as well, (separate from commonly understood filter factors) which is likely set up for white (and therefor blue) light. Silver halides are...
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    Re: Focal Length Confusionism

    As the flange location changes, both the film to Flange distance and the flange to node distance change by the same amount; so Pere's statement is true as it is stated; which was
    At infinity, the...
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    Re: Focal Length Confusionism

    What Pere is saying is that the rear node is one focal length from the film plane when focused at infinity. I think. Which is OK if you know the focal length already.
    Here is an interesting quote...
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    Re: Help with developing results good and bad

    But also edge fogging on the over exposure negative
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