Polaroid T-56 User Manual

Film Data Sheet
T-56
4 x 5 Sepia Sheet Film

Professional B&W Sheet Film

4 x 5 Inch
9 x 12 cm

Film Speed

ISO 400/DIN 27

Format

4 x 5 in. (10.16 x 12.7 cm)
Sheet Film

Image Area

1

3

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

Description

A panchromatic, medium-contrast film producing sepia-tone
prints with excellent gradation and tonal range.

Key Applications

• Old time photography

• Professional photography

Compatible Hardware

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

• MP-4+ Camera

Special Treatment

The processing temperature affects the tone of the print. Prints
processed in cold temperatures are more brown tone and in hot
temperatures more yellow tone. Processing for longer than
recommended may cause a “guilding” effect (a metallic sheen in
the dark areas of the print, giving it a daguerrotype appearance).
Over-processing may cause print curl.

Finish

Glossy

Exposures per Unit

20 exposures per box

Development Time

45 seconds at 70°F

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.

“Polaroid” is a registered trademark of Polaroid Corporation, Waltham, MA 02451 USA.

Film Data Sheet
Technical Data

T-56 Sepia
Instant B&W Peel-Apart Film

The information below represents the typical performance of Polaroid T-56 Sepia black and white peel-apart film.
Specific film lots may vary.

o

Recommended
speed (ISO)

Recommended
processing time
and temperature

Resolut ion (10 00:1) 14 - 20 line pairs/mm
Contrast Medium
Spectral sensitivity Panchromatic

400/27

45 sec. at 70

o

F/21oC

Processing time and temperature

For best results process at temperatures
above 60oF(16oC).

o

F

o

C

Time in

seconds

95 35 30

85 29 30

75 24 35

70 21 45

65 18 45

55 13 50

3

2

Sample Density

1

Characteristic H&D curve for normal,

hot and cold development

550F/130C

0

F/210C

70

0

F/350C

95

CRT Exposure Index*

0.5 Density**

Phosphor

P-4

P-11

P-16

P-24

P-31

* Value measured in reciprocal ergs/cm2 to
obtain desired density. Exposure duration is
1/125 second.

** 0.5 density intercept is comparable to the

0.6 net density given for most conventional
negative films.

Intercept

93

113

174

82

76

0

-3

Characteristic H&D curve for normal,

under and over development

3

30 sec.
45 sec.
60 sec.

-1-3 -0

2

Sample Density

1

0

H&D Curves

o

@ 70

F/21oC

-2

Relative Log Exposure

-2 -1

Relative Log Exposure

D-Max:

The density value for the film’s

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.

0