Theory of the Question

Ask a question. The response will depend upon who you are, who you ask, the circumstances, the form of the quesion– spoken, written….
the theory of the human, and the respondents theory of you–
what level of questioner are you? How much effort do they need to give to their answer. What will they gain.
How you answer on a first date, a job interview, an FBI interrogation, your chemistry quiz — all answers are based upon your assumption of an intent, and the reaction you need from the questioner.

“We don’t see things as they are; we see them as we are.”
– Anais Nin

Asking The Net

On the net, most answer to be included. Most answers are opinion, since most questions are based upon a vague or open ended topic. On a tech focused yahoo group I passed a question along.. since this group of 500+ listeners includes many former practitioners of dye transfer, I expected some open response. I did get response, but it fell into a very conventional cycle — answers without expanding understanding… The group consists mostly of hangers on, passive observers — the typical onlooker grouping. They will be happy with gossip. One site provides them talk that they will use on some other place.

net words

fools believe their knowledge complete.. assume that others aren’t as aware, don’t have as much knowledge as they have.
only fools have complete knowledge; or enough

Your Boundary

You bring your own boundary with you. Your limits limit your answer, often by providing a narrow interpretation of the question — frequently this is a view of the questioner.

Who Is The Qustioner

Is the question credible. With any “who’ there is power .. a relationship to an audience. The respondent must support their own self concept, somethimes by rejecting the question, since they don’t understand the qustioner, or respect them

Response Sequence

Q–ME

Ra.1 Jack Denman : what I know about it …
Rb.1 Andrew Cross : from what Frank M … ’98
Rc.1 Ctein : personally I think that’s a pretty silly hypothesis.
— he counters each of the prior posters questions and each answer.
This asserts his primacy of place, his experience as alpha. And completely misunderstands the question, the recent history, and of any understanding I may have. Aside: no one noticed that I had taught a recent class, perhaps, the only class in this decade, maybe this century about dye transfer.
Ra.2 Jack Denman : don’t want to quibble, (answered later parts of Ctein)
=================================
about: Ra — no experience. retired tech user. not a user of DT
Rb. — workshop trained. engineer, teacher. user of DT
Rc. — self taught. educated non-practicing physicist. writer. individual proprietor of photo services. widely known, yet unable to excel or grow a lab business

 

 

Color Printing — things change

… as a place holder. eventually, notes on printing color will appear

Gathering of notations:

Kodak recommends Portra for internegatives. It is pull processed to give the proper reduced contrast. Use 2′ 45″ or 3′ as start point in your darkroom.

The dye impurities exist in most dyes as it is difficult to create a dye that does not impact some of the spectrum outside its target range. For example the cyan dye, which filters out the red light, also filters some of the green light. The color mask is an attempt to correct  that. Slide film resorts to other chemical methods.

The application of this type of coupler to color photographic films requires a knowledge, of the optical characteristics of the colored-coupler images and the control of these characteristics so that they conform with the known practical requirements for producing color photographs.

1 E. Albert, German Patent 101,379 (1899); German Patent 116,538 (1900).

2 W. T. Hanson, Jr. and P. W. Vittum, J. Phot. Soc. Am. 13, 94 (1947).

3 Vittum, Sawdey, Herdle, and Scholl, J. Am. Chem. Soc. (to be published).”

(Hanson, Wesley T., Jr. (1950): Color Correction with Colored Couplers. In: Journal of the Optical Society of America, 40,3, 1950, pp. 166–171, on p. 166.)

US Patent: 2428054 august 1945

RA-4 Printing

use RA-RT developer replenisher for 45 seconds at 100 degrees F.

contrast saturation controls:

You can change saturation and contrast both by use of Sodium Sulfite, pH, and Hydrogen Peroxide. Sulfite and lower pH for down, and H2O2 and higher pH for up. You can also use Citrazinic Acid for down or H-Acid or J-Acid.

Mixing Chemicals

Kodak and Fuji chemicals are interchangeable. However, you cannot interchange part A of one with part B of another. One whole Bleach = one whole bleach.

C-41

The general rule is that what you buy is identified as either “developer” or “developer replenisher.” If it says “developer,” then it is ready to use as mixed. If it is labeled  “replenisher,” this is intended to restore strength to your working “developer.”If you want to mix a “replenisher” solution to directly develop film, it should be diluted and have “starter solution” added {per the directions}.

— Summer 2018 —

Here’s an update with links to Unique Photo’s products and pricing (USA only). Note the new/different packaging of the final rinse.

The first two items are needed to make ~6.5 liters of working solution developer. The mixing instructions are on the packaging (though you’ll have to adjust for proportions). You will have starter left over. The third item is a box containing two bladder bags of bleach and fixer. Use the bleach straight, mix the fixer 1+1 with water. Final Rinse is mixed according to the instructions (~1+100 with water).

C-41 Developer Replenisher ($13.95)
http://www.uniquephoto.com/product/c-41-dev-repl-lorr-tm-5l-ek-kodak-xhaz-hazsp1-832-0608-8231672/

C-41 Developer Starter ($14.00)
http://www.uniquephoto.com/product/kodak-c-41-dev-starter-lorr-1-2l-6601074/

Separate Bleach and Fix ($38.00)
http://www.uniquephoto.com/product/…sing-unit-f2-for-color-negative-film-1173319/

Final Rinse ($4.98)
http://www.uniquephoto.com/product/kodak-c-41-rinse-replenisher-tm-5-liters-8673170/

For 135-36 rolls:
– Developer/Starter: 6.5 liters total volume; use one-shot; capacity: 27 rolls
– Bleach: no dilution, 1 liter total volume; reuse at 10 rolls/liter; capacity: 10 rolls
– Fixer: dilute 1:1, 4.32 liters total volume; reuse at 10 rolls/liter; capacity: 43 rolls
– Final rinse: 5 liters total volume; reuse at 10 rolls/liter; capacity: 50 rolls

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Fix portion of BLIX can be replaced with TF5 or C41 fix — dilute fix to 1/3 or 1/4 volume before adding into part B of blix…

color wheel from Ansco Printon booklet. An early process with simple instruction.