Polaroid T-990 User manual

Description
General-purpose, high-speed, medium-contrast, integral film for
high definition instant color prints. It is balanced for daylight and
electronic flash exposure.
Key Applications
•Insurance photography
• Site & construction documentation
• Healthcare documentation
• Law enforcement (domestic violence, child abuse, others)
• Jewelry documentation
• Medical imaging (clinical documentation)
• Manufacturing (ISO 9000 documentation)
Compatible Hardware
• Spectra AF, Spectra 2, Spectra Pro
• Spectra Law Enforcement Kit
• Jewelry Pro
• HealthCam
• ProCam
• Image, Image 2, Image Elite
• Minolta Pro
• Macro 5 SLR
Special Treatment
None
Alternative product
Spectra HD Grid (with grid lines)
Film Data Sheet
T-990
Integral Color Print Film
Film Speed
ISO 640/DIN 29
Format
4 x 41/8 in. (10.2 x 10.5 cm)
Image Area
35/8x 27/8in. (9.2 x 7.3 cm)
Finish
Glossy
Exposures per Unit
10 exposures per pack
Development Time
2 minutes approximately
ILOP

7\SH
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. Do not cut or take apart pictures or battery. Do not burn battery or allow metal to touch terminals.
Limited Warranty
See information on the film box.
“Polaroid”, “Spectra”, “Jewelry Pro”, “HealthCam”, “ProCam”, “Image”, and “Polaroid Macro 5 SLR”
are trademarks of Polaroid Corporation, Waltham, MA 02451 USA. All other product names
may be the property of their respective owners.

The information in this data sheet
represents the typical performance
of Polaroid’s Spectra film family.
However, there may be some
variation between film lots.
Film Data Sheet
Technical Data
Spectra Film Family
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.
0-2 -1
0
1
2
Sample Density
Relative Log Exposure
3
Characteristic H&D curve for
normal development
H&D Curves
@ 70
o
F/21
o
C
Blue
Red
Green
-3
Recommended speed:
ISO/DIN 640/290
Recommended processing
time and temperature:
Approximately 3 minutes
at 700F/210C
Balance:
Daylight and electronic
flash (5500oK)
Contrast:
Medium
Resolution (1000:1):
7-10 line pairs/mm
0-2 -1
0
Sample Density
Relative Log Exposure
H&D Curves
@ 55
o
F/18
o
C
-3
Blue
Red
Green
Characteristic H&D curve for
cold development
2
3
1
0-2 -1
0
Sample Density
Relative Log Exposure
H&D Curves
@ 95
o
F/35
o
C
-3
Characteristic H&D curve for
hot development
2
3
1
Blue
Red
Green

Film Data Sheet
Technical Data
Relative Log Exposure
Exposure Time (seconds)
0
.2
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
.001" .01".0001" .1" 10"1" 100"
Reciprocity Law Failure
Blue
Red
Green
Modulation
Spatial Frequency (lp/mm)
0 0.5 1 1.5 2 2.5 3 3.5
0
0.2
0.4
0.6
0.8
1
Reciprocity law failure
A wide range of shutter speeds can be used without loss of film speed
or requirements for color filtration. For longer exposure times, some
exposure compensation and filtration is suggested.
Reciprocity
The ability of the film to respond in a
constant manner to a constant exposure
(light intensity x time).
Reciprocity failure occurs during very long
or very short exposures, requiring the
photographer to increase exposure.
Modulation Transfer Function
Spectra Film Family

Blue
Green
Red
Spectral Sensitivity
Wavelength (nm)
Spectral Sensitivity
350 400 450 500 550 600 650 700
0
1000
100
10
1
Spectral Sensitivity: Shows the equivalent energy needed at each
wavelength in order to activate the emulsion so that it produces a
neutral density of .75.
Film Data Sheet
Technical Data
Spectra Film Family