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  1. Re: Devere 504 Transtab + Jobo Colorline 5000 Analyzer?

    If in doubt, ask Odyssey Sales (De Vere's successor) - they offer/ offered the Colorstar 3000 wired to replace the timer (i.e. wired to the Bulgin plug). I suspect you won't be the first person to...
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    Re: Canson Baryta Prestige II vs I?

    I wouldn't say 'no texture' but rather something in-line with air-dried gloss FB papers. I recall that the 'II' version happened because of issues with the Photographique gen 1 that caused it to...
  3. Re: Advice On Uneven Development On Film Edges

    All these problems could be solved by implementing process controls, using regular trays and not using badly designed (and over-hyped) developers from a succession of not-photochemists.
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    Re: Kodak chemicals -- now what??

    No. This is about excess/ waste sensitising/ trimmer/ antihalation dyes, not whatever imagewise coupler/ 'stain' of questionable archival stability that has been formed via the oxidation of...
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    Re: Kodak chemicals -- now what??

    With the warning (that Ron made when disclosing these additives) that they may blister less well hardened emulsions. I'm not sure how much difference there really is between TF-5 and something like...
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    Re: Kodak chemicals -- now what??

    C-41 fix is the best of the lot - essentially odourless (near neutral pH) and ultra efficient.
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    Re: Welp, I did it, I ordered a lightweight 8x10

    Series 5 Gitzo, preferably one of the metal ones. Just a pity that that the G515/ G1515 are pretty rare these days. Even a Gitzo Giant + head + average 8x10 isn't that enormously heavy if you are...
  8. Re: FP4 or HP5 in PMK Pyro For Making Platinum/Palladium Prints?

    The speed loss is only really a potential issue at more 'standard' CI's used for silver gelatin today - not really an issue at the high CI's needed for most of the processes collated under the...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    I think you're underestimating Marilyn Levy's influence - she chaired the SPSE's Processing Section at that time & was on the editorial boards of their journals - and was a very senior civil servant...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    Sulphite = not a staining developer. Levy's work was not driven by pictorial/ aesthetic requirement, but primarily by military/ scientific research need. And if Levy was looking at those recipes,...
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    Re: DeVere 504 questions

    The De Vere dichroic head fans are usually very noticeable volume-wise unless they've been replaced.
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    Re: DeVere 504 questions

    Plug the head into the transtab. Take the square black Bulgin plug that runs to the analyser off that cable. Set it up as a shorting plug as per the manual, plug into transtab. Now the transtab will...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    You can end up at the same point as EMA claims to do so by using a perfectly normal developer and developing to a low CI, such that you'll need a hard grade to print on - agitation doesn't come into...
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    Re: DeVere 504 questions

    Panels you need:

    1972 1" recess, L39 thread for 50mm
    1973 flat, L39 thread for 105/ 135 (mostly)
    1974 flat 50mm thread for 150mm (mostly)

    Exceptions are if you need the 39mm fine thread or...
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    Re: DeVere 504 questions

    Firstly, read the manuals here and here - they will stop you damaging the machine and/ or hurting yourself. All the bolts/ screws are BSF or BA threads NOT metric or US fittings. The baseboard screw...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    Metol only developers will produce adjacency effects via exhaustion byproducts of Metol. Adding HQ (or similar) in sufficient quantity will switch this off - it's likely that the level of Pyrogallol...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    In an unhardened emulsion this might be the case. In a vinyl ether hardened emulsion it's going to be questionable at best. What is however known (and can be found in the literature/ patents from the...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    Catechol at various points - and in small quantities. It seems safe enough once in solution - and like HQ, I wouldn't bathe in the stuff in very high concentrations (far higher than film developers)....
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    I'd agree that it's easy to get plenty density & good curve behaviour from HP5+ for high contrast needs if you use appropriate developers (PQ Universal, D-72/ Dektol D-19b, D-11 would be good...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    You could have got to the same end point with ID-11/ D-76. Seriously. I only started to dig into the science when I wanted to know why I was apparently (without any real effort other than baseline...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    All photochemicals should be treated with care and can be harmful if you are stupid in handling them, but of the regular chemistry you are likely to encounter Pyrogallol is particularly potentially...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    Very little of that's likely to be the pyro. Of either sort. The useful pyro effects seem to be largely restricted to emulsion tanning in unhardened emulsions.

    It seems (from the available...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    What do you perceive as being the behaviour of negatives developed in pyro (which formulae?) or Pyrocat? Much of Pyrocat's supposed qualities really owe more to being fortuitously coincident with...
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    Re: Processing 510 Pyro & 100TMX with Jobo CPP-2

    And it has no qualities that cannot be matched by less toxic means. The only reason Kodak had for its use by the 1950s/ 60s onwards was for tanning unhardened matrix emulsions - and even then, they...
  25. Re: Bergger pancro 400 in bergspeed: Unseen base fog

    Your sharpening seems to be cranked up very high - I'd suggest that drawing any conclusions from the image about actual visual granularity is rather questionable.
  26. Re: Which paper is closest to graded Brilliant (Guillemot version).

    More or less - it was initially founded by Guilleminot's chief chemist & run by him for a number of years. What has never been totally clear is the extent to which Bergger's paper offerings were...
  27. Re: Which paper is closest to graded Brilliant (Guillemot version).

    It tends to get forgotten that modern multigrade papers seem to owe more to high chloride emulsions like Azo/ Lupex/ Lodima etc than to more 'traditional' enlarging emulsions because of the useful...
  28. Re: Can anyone help me identify this DeVere 8x10 enlarger?

    It's a 108S (or 108AF) - predecessor of the Vulcan/ Apollo machines. 10x10, not 8x10 - and not a variant of a 5108, it's meant for mapping/ aerial markets and the like. Extremely serious bit of kit -...
  29. Re: Bergger pancro 400 in bergspeed: Unseen base fog

    The problem is really that people don't realise that not everything behaves like relatively simple single-emulsion films from the mid 20th Century talked up by Adams and others with media column/...
  30. Re: Bergger pancro 400 in bergspeed: Unseen base fog

    There's a good chance it's very sensitive to the level of solvency of the developer used (i.e. too low a level of solvency is a bad idea) - this is not an unknown phenomenon.
  31. Re: Which paper is closest to graded Brilliant (Guillemot version).

    Firstly, it often wasn't Cd (despite various salesmen's best efforts) - that went sometime in the 1970s in many products - but often a combination of hardener changes, moves to washed emulsions (so...
  32. Re: Bergger pancro 400 in bergspeed: Unseen base fog

    They aren't. Some modern emulsions may have higher base fog for various very arcane chemical reasons (important interactions between solvent developers and the emulsions to significantly enhance...
  33. Re: de Vere 5108 enlarger 'control box' and neg holder

    It also looks a lot like the very rare bench setup of the 5108 (i.e DVB) - which limits you to a 240mm lens for 8x10 - most of the bench ones were reportedly sold for photocomp work and the like....
  34. Re: de Vere 5108 enlarger 'control box' and neg holder

    Sounds like you have the stabiliser, not the interface/ control box - which is mercifully very lightweight. I'd speak with John Boyce at Odyssey (who are the De Vere successor) regarding sourcing one...
  35. Re: What’s your most “unpopular” opinion about LF?

    Deana Lawson is more representative of today's LF camera users than the people on here wasting all their time worrying themselves silly about camera movements, film prices and irrelevant film vs...
  36. Re: What’s your most “unpopular” opinion about LF?

    Making a technically competent image with 4x5 or 8x10 (for a 2-3x enlargement) is actually really easy - if you don't spend all your time imaging grey cards while purposely failing to understand...
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    Re: How to learn a type of film?

    The unhappy reality is that the 'learn one film' cant is a load of auto-exculpation from people who can't manage to work out one end of a light meter from another (or at least manage to work out how...
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    Re: Refrema Machine Film Developing

    Bad choice of material for colour processes overall if there is lengthy contact with the chemistry. There are lengthy discourses from Kodak etc on appropriate material choice for processor design,...
  39. Re: Is it possible/practical to make digital negative for use in an enlarger?

    It won't. The halftone screened image is equivalent to a few hundred PPI, but has to be made up of a few thousand DPI to achieve that. Stick a 4x magnifier on a halftone neg & you'll see the whole...
  40. Re: Is it possible/practical to make digital negative for use in an enlarger?

    You don't want a litho film imagesetter output for your specific purpose (unless you are contact printing the result - and can get a fine enough dot/ stochastic dot) - in essence they are not (for...
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