Polaroid T-64 Characteristic H&D curves for Normal development, Processing time and temperature

Film Data Sheet

Technical Data

T-64 Tungsten

Instant Color Peel-Apart Films

The information in this film data sheet represents the typical performance of Polaroid’s T-64 Tungsten color films. Specific film lots may vary.

Recommended	64 / 19o
speed (ISO)
Recommended	90 sec. @
processing time
and	70oF/21oC
temperature
Resolution	10 line
(1000:1)	pairs/mm
Contrast	Medium - High

Processing time and temperature

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

oF	oC	Time in	Exposure
		seconds	Adjustment
95	35	90	-1/3 stop
65-90	21-32	90	None
55	13	120	1/2 stop

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

	Characteristic H&D curves for
	normal development
3
	H&D Curves @ 70oF/21oC		Blue
			Green
			Red
2
Sample Density
1
0
-3	-2	-1	0
	Relative Log Exposure

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

1.10to 1.70; high contrast slopes greater than 1.70.

Characteristic curves for cold development

	3
		H&D Curves		Blue
		@ 55 oF/18 oC
				Green
Sample Density				Red
	2
	1
	0
	-3	-2	-1	0

Relative Log Exposure

Characteristic curves for

hot development

	3
		H&D Curves		Blue
		@ 95 oF/35 oC
				Green
Sample Density				Red
	2
	1
	0
	-3	-2	-1	0

Relative Log Exposure