User manual POLAROID T-52 DATASHEET

[. . . ] Film Data Sheet T-52 4 x 5 Black & White Sheet Film Description 3URIHVVLRQDO % : 6KHHW )LOP [ LQFK 10. 2 x 12. 7 cm Wide-tonal-range 4 x 5 sheet film for detailed black & white prints. [. . . ] 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" and "Polapan" are trademarks of Polaroid Corporation, Waltham, MA 02451 USA. Film Data Sheet Technical Data T-52 (4x5 sheet) and T-552 (4x5 pack) Instant B&W Peel-Apart Film The information in this data sheet represents the typical performance of Polaroid's T-52 and T-552 black and white film. Specific film lots may vary. Recommended speed (ISO) Recommended processing time at 70oF/21oC Characteristic H&D curve for normal, hot and cold development 3 400/27o Type 52 20 seconds Type 552 25 seconds Panchromatic 55oF/18oC 70oF/21oC 95oF/35oC Spectral sensitivity Resolution (1000:1) Contrast 2 Sample Density 1 0 -3 -2 Relative Log Exposure -1 -0 12 - 15 line pairs/mm Medium Processing time and temperature For best results process at temperatures above 60oF(16oC). o F o C Time in seconds Type 52 Type 552 20 20 25 30 40 Exposure Adjustment -1/3 stop None None None 1/3 stop 95 75-90 70 65 55 35 24-32 21 18 13 15 15 20 25 40 Characteristic curve for normal, under and over development 3 H&D Curves @ 70oF/21oC 15 sec. 2 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. 1 0 -3 -2 -1 0 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. Relative Log Exposure Film Data Sheet Technical Data T-52 (4x5 sheet) and T-552 (4x5 pack) Instant B&W Peel-Apart Film Reciprocity law failure A wide range of shutter speeds can be used without loss of film speed. [. . . ] 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. Speed variation relative to color temperature 3200 o K -1/3 stop 4800 o K 5500 o K 6500 o K 7500 o K +1/3 stop 10, 000 o K +1/3 stop [. . . ]