A Christmas Cookie from Santa

[Ray Rogers]

Some old washing machines used to have a special basket for delicates that rode on top of the shaft, the basket providing a milder agitation for what ever was put inside. Turn this upside down & reverse the concept.

[dwross]

prototype Kodak style Supermixer?

A book teaser, maybe?

[Photo Engineer]

Denise;

Not a teaser. I don't have one yet and may not. I don't want to hold the book up for it.

PE

[Photo Engineer]

Some of my "friends" have asked me if there might be a Volume 2 of the book. Well, this depends on the sales of the current work in progress.

However, here are some ideas for a hypothetical Volume 2.

1. Use of the super mixer.
2. Making a color film and/or paper using dye bleach
3. Making a Pan Masking film for Dye Transfer
4. Making t-grains and cubes (implicit in VI but not specifically described)
5. Advanced chemical sensitization (S + Au - described but not used in VI)
6. Advanced chemical addenda for keeping, LIK and Reciprocity

And, you can add to this list of hypothetical items if you wish. If it is in VI, please don't add it here below. The TOC of VI is posted here to help out in this.

I am also considering a book that describes how to design developers and fixers, but this is off in the future. Remember that the current book has taken me 5 years to finish, when I had only planned on 2 or less, and the cost has been enormous in both personal strain and financially and plans to escalate during printing. So, I may just give up. IDK. Just random thoughts perhaps on a Saturday afternoon in Dec.

PE

[wildbillbugman]

Ron,
I can think of two suggestions off the top of my little head:
1) Sensitization/visible wavelength blocking, for deep IR film.
2) Testing and adjusting for "balanced" ortho and pan emulsions.
Bill

[Sirius Glass]

Another suggestion: How to make Kodachrome in my grandma's septic tank without chaining PE to the barn door

Steve

[Photo Engineer]

Ron,
I can think of two suggestions off the top of my little head:
1) Sensitization/visible wavelength blocking, for deep IR film.
2) Testing and adjusting for "balanced" ortho and pan emulsions.
Bill

Bill;

I cannot get IR dyes to date, and when or if I do, you will not need any blocking and so can use green or yellow safelight.

PE

[wildbillbugman]

Good AM Ron,
Out of curiosity, are the IR sensitizers used in Kodak High Speed IR film "Top Secret"? Are they made exclusively for or by Kodak ? Or is it a matter of toxicity?

[Photo Engineer]

Bill;

I'm not sure of the answer to any of your questions. I believe that both Sands and Honeywell make IR dyes. I do know that some of them were custom made and ran nearly $100,000 per batch of 1 kg. I also know that the IR dyes do not keep well. Therefore, a low volume product is not very cost effective if the dyes spoil and the product spoils.

Any of these dyes which contain Selenium are extremely toxic. They should be avoided for home use. All sensitizing dyes have some level of toxicity, with accumulation in the liver. The exception, which is low in toxicity (almost nil) and is used as a food dye is Erythrosine. That is why I use it.

PE

[wildbillbugman]

PE,
Given the fact that selenium compounds are very toxic, it is surprising that anyone can still buy KODAK High Speed Selenium Toner. I have not used it since the Clinton administration. But just confirmed that it is still available.
Bill