Jump to content

kevin_kemner

Members
  • Posts

    71
  • Joined

  • Last visited

Posts posted by kevin_kemner

  1. Bill,

     

    <p>

     

    You should take a look at Carl Weese's article on Pyro in

    PhotoTechniques printed last summer. He explains the relationship

    between the type of process being used and the light wavelength

    required to print it. I'm afraid that I don't have the information

    in front of me to give a better answer. I belive Hutchings says

    somewhere in his book that Pyro stain replaces the silver which is

    why it doesn't become too dense to print under an enlarger light

    source. The stain, however, is more absorptive of UV rays required

    for alternative processes, resulting in greater density.

  2. Mark,

     

    <p>

     

    I think coffee is actually a stain and not a toner (in that it

    doesn't plate or exchange the actual silver in the print). So it

    shouldn't offer any archival qualities to the print. If you're

    looking for a warm toner that has a similar color range and archival

    properties you might try something like Nelson's Gold Toner. I read

    somewhere that Sally Mann's recent landscape images were selenium

    toned first and then stained in a variety of concoctions including

    coffee.

     

    <p>

     

    Good Luck

  3. Thanks Bill,

     

    <p>

     

    I'm more interested in the tonal range than the grain although it

    might be possible to sandwich a layer of b&w negative film and a

    layer of duplicating film. This would be pretty close to how an

    autochrome was constructed. If I recall correctly the autochrome

    process reversed the negative so I would have to do the same to the

    b&w negative. This all be held together in a glass sandwich for

    viewing.

  4. Okay, I'm spending the holidays in the Great White North where my parents live rather the much more enjoyable southwest desert and have been burning with the following question: Does anyone have a technique they would like to share to expose transparency film to approximate the color range and saturation of the old autochrome or agfacolor process? This is what happens when 36" of snow on the ground has you reading every old photography book on the shelves.

     

    <p>

     

    Thanks and Happy 2001

  5. I'm guessing that this is the kind of question that anybody with common sense should know better about but...

     

    <p>

     

    If its common practice to do split developing with graded papers (such as dektol first for the darks and selectol for the high lights) is it possible to combine film developers for the same purpose? Say starting out with something vigorous like rodinal for zones 1-4 and then finishing development in PMK for zones 5 and higher. You could split the time between the two 1/3 and 2/3 as a starting point. Is there any historical basis to this idea or is it a formula for a Frankenstein's monster?

     

    <p>

     

    Thanks

  6. Okay, I was in the darkroom today and noticed that when I closed down the aperature on the enlarger the size of the circle of illumination on the easel got noticably smaller. The lens is an old Wollensak 7.5" Enlarging Raptar mounted on an Omega E-4 with condensor head. This is not my normal setup which is usually a shorter lens with a cold light. Can any body offer an explanation. I would of thought that it would be the reverse.

     

    <p>

     

    Thanks

  7. Don't laugh but, I know someone who ruined a few sheets by putting

    moisterizer on their hands after washing them so they would be clean

    for handling the film.

     

    <p>

     

    As long as your hands are clean, free of oil, and dry incidental

    contact with the face of film shouldn't be a problem. I photograph

    in the desert and in the summer when its hot I have had problems with

    transparencies. I am guessing that the combination of surface sweat

    and a softened emulsion is the problem so now I don't do any field

    handling of film. I have been luckier with black and white. The

    finger prints on the transparencies didn't wash away.

     

    <p>

     

    Kevin

  8. Hi everyone,

     

    <p>

     

    I am here to confess that I am one of those folks who asked a film and developer question. If the question offended some of the forum participants you have my apology. I would now like to re-post my question in a fuller form.

     

    <p>

     

    Over the past couple of years I have been refining my developing times and combinations for PMK and the 4x5 sheet films I prefer to use. I currently use FP4+ and Bergger with PMK and find that I favor older film formulations with this developer. With that said I did some research and found that Efke film are the same formulation as the Adox KB films. These are single speed emulsions with "chunky" silver grains. The density curves posted on the Fotoimpex website seem promising for zone work and I am interested in giving it a try, however, the film is not available in sheet sizes in the U.S. and must be special ordered.

     

    <p>

     

    Before I order this film I would like to have any input from members of the forum if this combination is worth pursuing. As I have limited access to a dark room any starting times for development and exposure would be particularily appreciated.

     

    <p>

     

    Thanks to everyone who has provided advice in the past and your tolerance of this reworded question.

  9. Hi Everyone,

     

    <p>

     

    Does anyone know where Efke sheet film could be bought in the U.S., or if someone overseas can ship it. Rumor is that the sheet film is the same old style emulsion as their "R" films. I develop mostly in pyro and would like to experiment a bit with it. Thanks for your help.

     

    <p>

     

    Kevin

  10. Hi Everyone,

     

    <p>

     

    I want to float a question out for anyone who has interesting sites to shoot within a two hundred mile radius of Las Vegas (Nevada). Thats my limit for a daytrip and I am starting to run a little thin on places I haven't visited a couple times. Thanks in advance for your input.

  11. No. I live relatively close to Zion and visit there frequently and

    have to say that in the fall photographers are one of the most

    problemmatic user groups in the park. I have seen our fellow large

    formatters park vehicles willy nilly along the roads damaging

    unprotected landscape and congesting traffic because they didn't

    leave enough room for two way traffic. All because it was close to

    the shot. This is not to say anything about people who park their

    tripods in the middle of traffic or have the gall to ask hikers (who

    spent the better part of the day climbing several thousand feet) to

    move so they could set up a shot. To think that we deserve special

    priveledges (sp?) because we are serious artists is to not understand

    the nature of the problem. There are numerous groups who also have

    legal rights to use the park for their personal interests (kayakers

    and rock climbers come to mind) for whom vehicular access would be

    highly desirable, but, the attitude that parking as close as possible

    to a desired location has significantly diminished the quality of our

    most popular national parks. When you have the experience of

    visiting Zion on a non-holiday weekend and the scenic drive looks

    more like the parking for the Michigan-Ohio State game then something

    has to change. For me I'm happy to hike.

  12. Patrick,

     

    <p>

     

    I just checked a couple websites that list what bulbs per enlarger

    and the lamp listed for a Laborator 54 was a ph211 or a ph212. Both

    are available at B&H Photo. I probably duplicated your efforts but

    thats my 2 cents worth.

     

    <p>

     

    Kevin

×
×
  • Create New...