Kodak 2467 User Manual

Computer Output Microfilm

Data Sheet

KODAK COM DR Microfilm 2467 / ESTAR Base

Description

Kodak COM DR Microfilm 2467 (Estar Base) is a
slow-speed film with a direct reversing emulsion
that is blue-green sensitive. It has high spectral
sensitivity in the 430 to 550 nm range.

Product Applications

Kodak COM DR Microfilm 2467 is designed for
use in blue phosphorous CRT (cathode ray tube)
type computer output microfilmers (COMs).
These devices photograph data displayed
electronically rather than from printed
documents. COM DR Microfilm is drop-in
compatible with roll film COM equipment
such as Bell & Howell, DatagraphiX 4500, XR,
3M Beta COM, and graphic COMs such as
the III Cal Comp. COM DR Microfilm requires
only conventional processing, and does not
require the use of a full reversal processing
system, which uses dichromate bleach.

Features

 Manufactured to meet ISO and ANSI

standards for an LE 500 film

 Excellent capture of CRT, formsflash,

and cutmark

Minimum adjustments are necessary to
balance these exposures.

 Uniform background provides crisp

diazo copies

 Low printing density (D-min 0.04-0.05)

Clearer master characters (D-min) allow for
higher throughput rates of duplicators.

 Good exposure and duplication latitude

The combination of a low D-min and medium
contrast yields a wider exposure tolerance
and fewer exposure adjustments of duplicator
exposure times.

 Low process sensitivity

Even as process conditions vary, DR microfilm
maintains high image quality.

 Invariant photographic speed

From batch to batch, there is no need to
adjust exposure output.

 Halation protection

Halation protection eliminates image
bloom caused by reflected light. This is
particularly important with headers and
detailed form slides.

 Process-surviving antistatic backing

Even after processing, static protection is
maintained to reduce dirt and dust build-up
during duplication and handling.

D-48

Physical Properties

 Hardened emulsion for high-temperature rapid

processing and resistance to abrasion

 Antihalation undercoat

 Meets ANSI and ISO standards for archival

storage media

Nominal Thickness Data (Unprocessed)

Support 4.0 mils, Estar Base

Test-Object Contrast Line Pairs/mm

1.6:1 (ISO-RP) 100

1000:1 (ISO-RP) 400

These values were determined by a method
similar to the one described in ISO Standard
6328-1982, Photography - Photographic
Materials - Determination of ISO Resolving
Power, except the light source used was a
high pressure mercury vapor arc.

Total Film Thickness 4.0 ±0.2 mils

Before-Process Handling and Storage

Handling

Unprotected films should be handled in total
darkness or under safelight conditions such
as a Kodak No. 2 Safelight Filter / dark red,
or a Kodak No. 1 Safelight Filter / red, with
a 15-watt bulb at least four feet from the film.
However, the following package configurations
may be handled in room light:

 Com-Pack Cartridge

 Roomlight Load

Storage

For best storage, keep unprocessed film in
the original, unopened package at 70°F (21°C),
50% relative humidity or below, and protected
from radiation and X-rays. To avoid moisture
condensation on film that has been refrigerated,
do not open the package until the film has
warmed throughout to normal room temperature,
about three hours if refrigerated or five hours
if frozen.

Photographic Properties

 Fine grain

 Excellent dimensional stability

 Medium contrast

 Excellent latent-image keeping

 High resolving power

Resolving power: (based on recommended
process)

Diffuse RMS Granularity: 6

Read at net diffuse visual density of 0.30 using
a 48-micrometre aperture. A more detailed
discussion of granularity can be found in
Kodak Publication F-20, Understanding
Graininess and Granularity.

Processing Information

Processors and Processing Chemicals

Kodak COM DR Microfilm 2467 can be
processed in most typical continuous-strand
type medium and deep-tank processors such
as Allen F10, F-10R, F-20, F-20R, Houston

Fearless 76, Oscar, Jamieson, Hollywood,
Kodak Versamat 75, and others utilizing
Kodak COM Professional Developer and

Replenisher DRC with Kodak Microfilm Fixer
and Replenisher. COM DR 2467 Microfilm is
compatible with all standard microfilm processing
equipment and high-quality microfilm chemicals,
although results may vary.

IMPORTANT: For best results and to avoid

aeration, always add chemical
concentrate to water, not water
to concentrate.

Photographic Aims

D-max:1.95 to 2.15*
D-min: 0.06 or lower

Processor transport speed and/or temperature
may be varied to achieve D-max and D-min
values. Process adjustments to achieve a D-max
in the range of 1.95 to 2.15 or lower D-min may
be required depending on unique processing
situations. Initial D-max on start-up of fresh
developer may be slightly lower, but should
stabilize in the 1.95 to 2.15 range.

Note: Refer to the latest revision of each ANSI

or ISO Standard specified.

D-48 2

* When starting with fresh chemicals, D-max may

be slightly lower than 1.95 until the chemicals
are seasoned.