Punching Holes

machines change as their maker learns. Registration holes in film came after registration of masks and mats. At first film was on glass, then on thick flexible plastic (celluloid). Until DuPont invented strong thing film-base, first used in lithography, lab films couldn’t withstand much punch, pull, position, alignment. Besides, the emulsion has always ‘shifted’ size more than the film base. Most professionals watched their relative-humidity and drying angles of critical film.

The following two punches are from the most known lab equipment maker. Most known among those talking today. Note how the change in punch systems. The first, very simple — a bar acts as leaver. Over time the leavering matured — becoming smoother. The positioning guides didn’t change. Not even in size of hold-down. And the badging became a glued on plate with serial number.

1963. Condit Register Strips for Kodak and Condit punch systems.

Business Registered Date Jan 05, 1962

These were standard items in student kits at schools.

Warren L. Condit, 83, husband of Elizabeth (Myott) Condit of New Lebbon Road, Newtown, died March 2002 in Mediplex in Southbury. Warren was born in Staten Island, N.Y., July 1919. He was a US Navy veteran of World War II, serving from 1940 to 1945 as a radioman, first class, and photographer.
From 1947 to 2000, Warren operated Condit Manufacturing in Sandy Hook, a company specializing in equipment used in the development of color films, the manufacturing of the teleprompter, and violin making tools.

In its first decade, imbibition printing at Eastman Kodak changed, in means and manners, not only in name.

At first, it was the Eastman Wash-Off Relief process. When it became Kodak Dye Transfer, brochures were updated several times.

Note the cover photos showing the transfer operation: the early one shows the Blanket method; the later, color, one shows the transfer table with Kodak Pins.

Even earlier the “slip sheet” was used. This was the way with Eastman Wash-Off Relief (WOR).

information passes, even through unsigned handouts. My Cooking Color set of notes on setting up dye transfer/wash-off processing for the small, independent worker.

… but then, I gathered them from Henry Smith and several dozen forgotten cohorts… it is only when publishing that we need the name on the spine.

punch links

NB: I have written a pamphlet specifying the steps to making an adaptable punch+pin system using mostly off the shelf items. members of OIC maintain it, as well as having several sets ready for new members.

Kodak RA-4 Paper

The digital RA-4 paper notes. Endura in 2013 included printing in darkroom. 2019, no such advise. See the calibration routines for setting your digital printer. I don’t know that any of these papers are sold in 2023. The world, especially in non-western countries, is rapidly moving from wet-lab to dry-lab imaging.

The “analog resurgence” is a thing in major metropolitan areas, but a thing for 35mm film. Along with this bounce has come a demand for scanning; a demand so strong that premiums are being paid for scavenged “scan heads” of minilab equipment.

Of note should be the filtration recommended for Kodak Endura Premier paper. A white-light starting pack of 40M+50Y, or a Tricolor filter set of 25,99,47B … Don’t forget — still recommended are IR and UV filters (B).

From the datasheets you could build upon your Rosetta of process procedures.

Profiles provided by Kodak give you an indication of what products have been made, but not what is current product.

Kodak’s LED Digital Color Printer model 20O/R can be controlled from within Photoshop. Yes, Kodak made LED printers, no matter what the Forgotten of Foradum say. It also suggests that calibration of LED printer is possible for at least one Kodak RA-4 paper.

Of course, ZBE’s Chromira is a long standing LED printer used by many US West-Coast labs.

http://www.zbe.com/usergroups/files/products/chromiraprolab/manual/ChromiraProLabUsersGuide_v1.pdf