Polaroid T-79 User Manual

Film Data Sheet
T-79
4 x 5 Sheet Film

Professional Color Sheet Film

4 x 5 inch

10.2 x 12.7 cm

Type

79

Polacolor Pro 100

Film Speed

ISO 100/DIN 21

Description

Medium-speed, medium-contrast, medium-grain, daylight and
electronic flash balanced (5500°K) color print film. This film
features accurate colors and bright whites; sharp, vibrant,
saturated proofs and final art; lower contrast for greater detail;
improved reciprocity characteristics, and fast clearing and drying.

Key Applications

• Professional photography (proofing and final art)

• Passport/document photography

• Scientific/industrial photography

film

Compatible Hardware

• Any instrument or camera equipped with a Model 545/545i

Film Holder

• MP-4+ Camera

Format

4 x 5 in. (10.2 x 12.7 cm)
SheetFilm

Image Area

1

3

/2 x 41/2 in. (9 x 11.4 cm)

Finish

Glossy or silk

Exposures per Unit

20 exposures per pack

Development Time

90 seconds at
70°–95°F (21°–35°C)

Caution

This film uses a small amount of
caustic paste. If any paste appears,
avoid contact with skin, eyes and
mouth and keep away from children
and animals. If you get some paste

on your skin, wipe it off immediately ,
then wash with water to avoid an
alkali burn. If eye contact occurs,

quickly wash the area with plenty of
water and see a doctor. Keep dis­carded materials away from children,
animals, clothing and furniture.

Limited Warranty

See information on the film box.

Special Instructions

T emperature affects the final image:

Processing at temperatures above 95°F (35°C) or below 55°F
(13°C) is NOT recommended. Best results obtained between 65°­85°F (18°–29°C).

Force-drying prints:

Allow the print to air-dry for at least thirty (30) seconds before
using a forced-hot-air dryer.

Viewing:

When evaluating the color balance of a print, use the same light
source under which the print is to be viewed as a finished product.

Laminating prints:

This film is NOT recommended for use with laminates requiring a
wet print to produce a photo-destruct bond.

Alternative Product

Use Polacolor T-59 for emulsion lift and T-64 Tungsten for
tungsten lighting.

Processing Information

T emperature Proc. Equivalent Exposure
°F °C Time Film Speed Adjustment

(sec.) (ISO/DIN)

70-95 21-35 90 100/21 None
65-69 18-20 120 100/21 None
61-64 16-17 150 100/21 None
55-60 13-15 180 100/21 None

“Polaroid” and “Polacolor” are trademarks of Polaroid Corporation, Waltham, MA 02451 USA.

All other product names may be the property of their respective owners.

Film Data Sheet
Technical Data

Polacolor Pro 100, T-79
Instant Color Film

This information represents the typical performance of Polaroid Pro 100 color films.
Specific film lots may vary.

Characteristic H&D curve for normal development

Recommended
speed (ISO)

Recommended
processing time
and temperature

Resolution (1000:1)

90 sec. at 70

8 line pairs/mm

Contrast

100 / 21

medium

o

o

F/21oC

3

H&D Curves @ 71oF/21oC

2

Blue
Green
Red

Processing time and temperature

o

F

o

C

Time in

seconds

95 32 90
75 24 90
70 21 90
65 18 120
60 15 150
55 13 180

Characteristic H&D curve for

cold development

3

2

Sample Density

1

0

H&D Curves @ 55 oF/18 oC

-3 -2 -1 0

Relative Log Exposure

Blue
Green
Red

Sample Density

1

0

-3

Characteristic H&D curve for

hot development

3

2

Sample Density

1

0

H&D Curves @ 95oF/35oC

-3 -2 -1 0

Relative Log Exposure

-2 -1 0

Relative Log Exposure

D-Max: The density value for the film’s

Blue
Green
Red

darkest black.
D-Min: The lowest density value that a film

exhibits. In prints, the whiteness of the
brightest highlight, relative to the
unprocessed print.

Slope: The positive ratio of the log E
increments of the straight line region of the
curve, as determined by the 1/4-3/4
increment method. The slope of an H&D
curve indicates the overall contrast of a
film: low contrast slopes less than 1.10;
medium contrast slopes from 1.10 to 1.70;
high contrast slopes greater than 1.70.