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martin_pistor

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Posts posted by martin_pistor

  1. Hi Eric,

    rather sounds as if your assignment targets where not clear.

    There is no regulation authority for defining alternative process as isn't for fine-print or alike words.

    Unfortunately www.alternativephotography.com lists polaroid as an alternative process if used with lifts, scratching or else additional treatment, if a website could be regarded as such an authority.

    Therefore if it's a target for your grade, a poll won't help.

    We all'll see the day when silver gelantine will be alternative process, for "non-alternative" will be digital.

    If Lith would have been alternative is just the same discussion.

    I'd just argue, that the task was not defined properly, and you saw no obvious objection.

    Whereas you already handed in, the easy way out to scan and print negs for lith or ancient processes is obviously missed.

    If your class uses a documentation, script or book, that clearly gives a definition whats "alternative" and polaroid itself is not listed, you've lost. But then, you could have known before.

    Regards,

     

    Martin

  2. I'd doubt you'll be happy with scans from a 8x11. You might try, but what kind of scanner you're planning to use? Minox is really edge of physical possibilities. So I'd rather prefer analog printing.

    Anyway, let us know your experience.

    Film development should not be any reason to make a big deal.

    There is a modification for the Jobo 15oo series reel (available ready at 8x11film.com (maybe JandC will be able to provide them in the US)but can be done with some care at home, or you have a look for an old Minox daylight tank.

    When you tried it once, you'll find even going to your friend to hand over the film is more exhausting (ok, if you need a reason to visit him).

    Regards,

    Martin

  3. Why not trying Neofin blue (ok, its expensive) but its been developed exactly for this kind of film.

    massive dev. times are ok for a start, and I like it very much. If not for slow speed developers, don't overexpose. I had shadow detail similar (maybe 2/3 stop apart due to different measurement) to the adox CHM 400 (HP5) measured with ISO 100!! (some mistakes are lucky)

    Martin

  4. Hi Troy,

     

    you wrote>>but I need something that will not totally clog the pores of the surface like a sealer<<

    Did we mention, Liquid light will cover the surface like gelatine, for thats exactly what it is?

     

    Anyway, if you're located in US, contact JandC aka fotoimpex.com for purchase.

     

    Have fun,

    Martin

  5. Every alt process ex. liquid light and Bromoil will require an original size neg. No enlarging.

    According to my experience, Van Dyke is rather tolerant to surfaces, that might contaminate the emulsion. For Cyano, you should make a test. Coat, do not expose, but wait for half an hour, wash. Let dry and wait at least on week, sample exposed to sunlight. If it turns blue, forget it.

    Gum bichromat nearly doesn't care about reactions with the carrier, but will show up sealing the surface like glue.

    Maybe indirekt Bromoil might be a way, for you can try to print from a bromoil to another carrier.

    Martin

  6. 1. ref. to colleagues above.

    2. Its a concern with specific papers. Forte PWT is equivalent to Moersch select sepia, so for samples ref. to www.moersch-photochemie.de.

    Depends also on your developer if you can do completely without additional sodium sulfite. Some devs already incorporate a minimum amount. This matter is about try and error.

    Martin

  7. Hi folks,

    after evaluating POP via a greyscale I found xtrahard negs are

    required.

    Any recommendations how to produce negatives with a appr. Dmin-Dmax

    of 2 or even a little more from subjects with normal contrast (wich

    is normally regarded to be 30-100 or log. 1,5-2) meaning I'd need a

    gamma of more then 1.

    Internegative process is known, but I'd like to use my 8x10 negs

    directly.

    Thanks,

    Martin

  8. Hi Charles,

    taking stronger developer and less bromide, less exposure also is a way to have less tone, but to get clear white I'd suggest a gold toner, wich does a total decolouring at first, then retoning again (take out before).

    For the photo I'd guess they whitened the bathing suit in reproduction/printing.

    Hi Lowell,

    actually after looking I found most lithable paper claim to have "extra much" silver content (Adox Vario Classic "2,5 as much as others") Whereas I do not have proper values for most papers, except salesmen buzz when claiming, "Mine has most" I can't confirm neither disagree.

    Actually I believe besides the "incorporated developers" which is a common known k.o. criteria there's more to lithing then silver.

    The Adox mentioned above is a pita in lithing, Polywarm is terrible good(no secret why Wolfgang Moersch sells it under his lable too)also claims "high silver content" even I don_t like the pinkish tone sometimes, Fomatone I don't know about the silver, but is as pretty as easy to lith. My favourite.

    If any I'd say coldtone papers are hard to lith, so the presence of lots of silvercloride seems to help both a nice, not to rough "lith grain" and rich colour.

    Unfortunately Wolfgang only translated his autotoning (lith-two-bath) and toning essay into english, not his Lith course, but even "reading by pictures" would give a lot of information about different papers to you.

    Martin

  9. Hi Lowell,

    the amount of silver is not critical to Lithprinting according to my experience. What actually bashes your developer are "normal" developing substances even in small ammounts. Therefore all papers with incorporated developing substances are not lithable. IMHO You actually miss something if you didn't try Fomatone and Classic Polywarmtone (aka Moersch Select, some Berger or Forte). For a good overview have a look at the tutorials at www.moersch-photochemie.de. All the eastern europe stuff should be available in US from fotoimpex.com aka jandc.

    Have fun

    Martin

  10. Hi folks,

    you are absolutely sure, Jay needs a .4-.7 neg for Cyanos and Van Dykes? Maybe I`m not firm with converting Gamma to Densitiy, but for my Cyanos and my VanDykes I do need a Gamma close to 1 or a density (reflectivity is irrelevant) range of at least 1.4-1.8. Pop even on the hard end. A .5-.6 normal condenser head enlarging neg doesn't show the contrast range necessary for alt processes.

    If you really know mods on the sensitizers/processes, that work with a say .5 neg, i'd really appreciate to know.

    Maybe different for the one-step reversal process. I didn't try this.

     

    Jay, maybe it would be helpful to know, which goal you hope to archieve with using FB paper negs instead of film or RC Paper.

     

    Regards,

    Martin

  11. Hi Jay,

    althought it shows up in literature, i'd not recommend to do paper negs. You do not only need a high Dmax, but also a long Dmin-Dmax. Obviously the Paper will add a high "fog" or Dmin.

    This would mean until your shadows are exposed sufficiently, your lights are too dark.

     

    I doubt there are any lightweight FBs around. Most are at least "double" 180g/sqm or triple 280-300 g/sqm.

    I admit I didn't try waxing, maybe thats a way. But after starting with maco GPF i had no reason anymore.

    fotoimpex sells a special lightweight "document" paper by foma, but thats RC and fixed contrast.

    So if you insist on FB, my first guess would be Fomabrom or Adox/Classic Polycold for they are on 180 and bromide-silver gives you strong black.

    Martin

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