Tag: darkroom-printing

callier confusion

Posted on Posted in labnotes, minimum daily requirement, The Negative, TheoryTagged , , ,

“Intelligent individuals learn from every thing and every one; average people, from their experiences. The stupid already have all the answers.”  ― Socrates

one of the optiquals… using light for means, by means other than image-formed pattern. Sometimes the H&D curve is more bendable than others. More details follow…

:the mysterious Q is called upon from the shadows as explanation for almost any effect. What does it explain? Do you use it… that other light; that other exposure summation. Think weeding … sometimes it makes tea.

Photography is a simplified form of drawing; let the thing draw itself.. the law, rather, the principle of exposure holds for most of the time. Like all real things the exposure rule varies. This variance provides confusion or useful options, even if you don’t know the names of the various effects. Reject before using is a rule of turds. Well known, widely influential resources gain stature by passing along their approach; their dictionary, complete with conceptual restrictions takes hold.

if not controlled, at least understood — edge of distinction —

More importantly, how can you use exposure effects in control of the image. How to manage the different points of the curves. Tone-bending, by using effects discovered and refined by early photographers building out the field of light sensitive surfaces.

Flash and Burn characteristics of the enlarger. The slide-set introduces the concepts of controlling some of the HD shape by means of altering single contrast emulsions, such as films. All dye labs had full understanding of these principles. Some of the information carried over into the fixed grade BW darkrooms.

patent simmon
Early darkroom lamphead patent for a condenser enlarger. 1948

Flare up. The other words, effects found upon deeper reading into the the literature of exposing silver materials. If you were a designer of systems, or an extremely inventive user, these terms, often named after their initial discoverer, will take you along the full path of the characteristic curve; enough so, that you could begin to design exposure making and measuring systems.

Flare: The worst element in photography. The projected light that escapes around the image and causes fog and distortion of the original image. — Bob Pace.

  • MEES. c. E.: The Theory of the Photographic Process, p. 849; Macmillan. New York (1945):
  • and GOETZ, A., BROWN, F. W.: Light Scattering and the Graininess of Photographic Emulsions, J. Soc. Mot. Pict. Engrs., 39; 375 (1942).
  • SMETHURST, P. C.: Scattered Light, Image Gradation, and Surface Treated Lenses; Brit. J. Photogr., 88; 427, 434 (1941).
  • G. Kornfeld, “The Herschel Effect and the Structure and Stability of the Photographic Latent Image*,” J. Opt. Soc. Am. 39, 490-494 (1949).
  • Zachoval, L. A contribution to the theory of some photographic effects. Czech J Phys 8, 214–217 (1958). https://doi.org/10.1007/BF01603694

uses.. filed borders to introduce gate-flare : edge of framing gate induced flare .

flare tnf refsDownload
Additional References
webionaire refsDownload

Using means knowing the difference between a silver contact and silver projected image in common darkroom printing. Dye-transfer is BW made complex by the number of steps; permutations seemingly beyond understanding. We learned the difference between silver testing and color, dye testing. The AIM, targets used had effects that could confuse ones initial learning — without luck, or well directed starting information it could seem a fools burden… pushing snowballs up a volcano.

Become alert to difference in response between instrument reading and material action: measurement may not predict fully, accurately. What you measure may not be what you get — refine, or re-define. Dyes aren’t silver; this meant that what we tested changed by stage of the process; was it silver, or dye stage material.

Applications and Implications —

exposing adox lupex : https://www.adox.de/Technical_Informations/TA_LUPEX(EN).pdf

reading adox contrast and understanding: http://www.adox.de/Technical_Informations/MCC_Datasheet.pdf

AN: splasboard processes

Fishtales, Campfires, Photography

Posted on Posted in art biz, da net, meaning, the foraTagged , , ,

Hosting campfire tales among the analog boosters.
The Greeks believed that fishing was the harbinger of prosperity; easy fishing a rich season . Small fish bring large fish.

A TALE: it is as though I’ve come across a campfire. There are young and old gathered around it; fishing poles, fishing tackle, some people in fishing vests wearing hats with lures stuck in them. A cover for some brochure, except the people aren’t suitable.

There is some fish, although not much; they’ve either finished, or they didn’t have a good day fishing. Telling stories keeps them from thinking of failure –how many bad days. — neither worms nor ties worked.

I stay aside and listen for a moment, a couple of tails and then I’ll be on my way. The old seem to be trying to outdo one another, each elevating the story, having more knowledge, having greater insight ,having more experience, having caught more fish. The old telling the young how much better fisherman the old were when they were young; the old were better fisherman when they were young, and better fisherman than these young; also, fishing was better back then. More types, tastier too.

Their stories make fishing better back then: the reason for this, for their reasoning, their motive isn’t stated– likely unknown, nonetheless, I’m going to tell my tale, my explanation of what and why they’re doing this: they’re doing this to gain position at the campfire, to have their story retold by the Young, to make their story the Young’s story even though their story, it’s just a fish tale

These ancient fishermen, they lived off store-bought fish, more likely, beef at the drive-through on their way back from Camp.

I am offended, I do do not mean to offend, but I am offended since I lived off fishing. These gossip groups are thieves stealing a past and a future.

They tell their tale to drown out the tales of the young; these elders tell their tales so often the young believe them. They’ve told their story so many times they start to believe it, So many tales have been intertwined there isn’t any thread of origin, of truth– the film is fogged beyond use.

  They told the tail so many times they forgotten the truth of it they no longer know the true parts the small part became so big that the fish turned into a whale

It’s not that they’re bad storytellers, instead they’re good liars… dissemblers of information. They met someone who knew someone, becomes: they were the dear friend of that one.

Their story doesn’t matter to my tale ,not a flicker.– It doesn’t stop me from fishing, and it doesn’t stop me from enjoying the fish I catch.

Of course, like all fish stories, this has nothing to do with fishing.

Matte paper. Reflection density. Callier Effect. Woodburytype

Farnsworth [wikipedia]

To know a story, read their story.

Gossip is always wrong. And prone to false memory; featuring yourself as the center of the circle, the fountainhead.

Magnolia

Although there are some glimmers of the truth in these {DW post) none of the facts or numbers are correct and no one working at Magnolia can recall the jigsaw portrait that is mentioned… [Jan,2021 private communication]

HIS claim: The most interesting project I was consulted on involved a giant jigsaw puzzle color self-portrait using 22 species of exotic hardwood. After the scan, this was laser-mapped, but could not be either laser cut or CNC done. I won’t gone into details, but their labor charge was 40K, and they lost money at that! But they did it for the challenge, and just shrugged their shoulders and said they’d make up the difference on the next Chuck Close project. Most of these pieces sell for over a million apiece to museums or civic installations. NYC has quite a few

Two additionals: Dmax is less valuable, as well as being prone to measurement error for papers than is L* —

AND : Happy Andre Breton Day …