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  1. #11
    nick mulder's Avatar
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    I'm just following the instructions in the photo formulary pack I got a few weeks back

    Can I snigger in the corner with the pyro 'in' folk now or are there more traps for young players ? :rolleyes:
    Cleared the bowel problem, working on the consonants...

  2. #12

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    Quote Originally Posted by nick mulder View Post
    righto, so I've stepped upon some sort of bone of contention here ? A common Pyro faux-pas maybe ?

    enlightenment appreciated ...

    ~Nick
    No worries Nick, I think Pat's just reminding me (and others) that folk wisdom is fallible.

    And I'm reminding Pat that there are often some facts underlying the folk wisdom.

    Dunno about any factual Garlic connections with magnetism though.

    I was working a ferrite core reluctance stability problem earlier today - Garlic wasn't mentioned.
    Tom Hoskinson
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  3. #13
    nick mulder's Avatar
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    heh, reminds me of another thread that got so far as to how to measure focal lengths using the unit standard of 'women' - it started out in tortellini ...

    I am a user of a cinematography website and there are plenty of rules that get spurted out there by people who have read it on the net somewhere "so therefore its true" - I get tired of trying to make sense of it all and fly off on abstract tangents, that do have a core of truth somewhere but are otherwise incomprehensible to me and maybe one other user ... I smelled a hint of that here, and well, yeh no further comment required

    cheers for the info though - the original post was answered taco pronto

    nick
    Cleared the bowel problem, working on the consonants...

  4. #14
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    Well, the idea that an overall pyro stain will result from the alkaline afterbath seems to have prompted thr OP to observe that it might be the thing to do if the contrast appeared to be too high. In that respect, it would be like having a permanent yellow filter that would reduce the contrast when printing on VC paper. Contrary to the opinion of some, the proportional part of the yellow stain slightly increases VC contrast. So maybe it would not be such a bad thing to use the afterbath in such cases. You would still have the proportional part for blue and UV printing, albeit with longer print times.

    Sometimes the trouble with conventional wisdom is that it is too rigid to see all the possibilities, and instills such fear of violation that few are bold enough to test it. Lodestones were valued possessions. Who would risk eating garlic near one? The man who stood on his front porch and ate tomatos in public was expected to die a violent death forthwith. If he had, it would have been the result of indigestion, not poison. Anyway, we can use the subject to make fun if not good photos.
    Gadget Gainer

  5. #15
    nick mulder's Avatar
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    I should mention I'm using pyro negs solely for Pt/Pd (UV) printing ...
    Cleared the bowel problem, working on the consonants...

  6. #16
    JBrunner's Avatar
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    Quote Originally Posted by nick mulder View Post
    I'm just following the instructions in the photo formulary pack I got a few weeks back

    Can I snigger in the corner with the pyro 'in' folk now or are there more traps for young players ? :rolleyes:
    You are of course using an alkali fixer... tortellini, anyone?

  7. #17

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    Helmsmen were not allowed to eat either onions or garlic, as it was believed that the resulting breath odor would negatively affect the navigational lodestone.

    Diamonds were also believed to have a negative influence on lodestones.

    Regarding the use of a PMK afterbath, see this old APUG thread: http://www.apug.org/forums/archive/i...p/t-11353.html

    Also see: http://www.largeformatphotography.in...ad.php?t=23003
    Tom Hoskinson
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  8. #18
    nick mulder's Avatar
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    Quote Originally Posted by JBrunner View Post
    You are of course using an alkali fixer... tortellini, anyone?
    yip ok I'll have some

    Its fixed for as long as an average song on my ipod takes in Ilford Rapid Fix (sans hardener)
    Cleared the bowel problem, working on the consonants...

  9. #19
    JBrunner's Avatar
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    It is said by garlic eating helmsmen that acid adversly affects stain, and that a water stop and alkali fixer such as TF-4 is the thing to do.

    (That's what they say in the sniggering corner near the onion pot.)

  10. #20

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    Quote Originally Posted by nick mulder View Post
    yip ok I'll have some

    Its fixed for as long as an average song on my ipod takes in Ilford Rapid Fix (sans hardener)
    http://www.ilford.com/html/us_english/sds/sds.asp

    http://www.freestylephoto.biz/pdf/ms...L_RAP_FIX_.PDF

    Based on the Ilford MSDS information, it appears that Ilford HYPAM and Ilford Universal Rapid Fixer are the same fixer.

    Ilford Universal Rapid Fixer contains Ammonium Thiosulfate, Sodium Sulfite, Sodium Acetate, Boric Acid and Acetic Acid. The pH of the Ilford Rapid Fixer concentrate is listed as 5.1 (thus acidic)

    Recall: Acid pH is less than 6.5
    Neutral pH is 6.5 to 7.5
    Basic pH is greater than 7.5

    If you wish to increase the pH (i.e. make the fixer alkaline), just mix in Borax or Sodium Metaborate until the pH reaches the desired level (i.e. approx. neutral pH when the fixer stops fizzing - then add a few more grams of alkali). Otherwise, you would need a pH meter or pH indicator paper to accomplish this.
    Last edited by Tom Hoskinson; 01-26-2008 at 02:28 AM. Click to view previous post history. Reason: typo
    Tom Hoskinson
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