[nettime-lat] 0 + 1½ + 1 + 2 0 + 1 + 2 + 3 0 + 1 + 2 + 3 (technical data)

[proyectos.macg@worldmailer.com]

5 Granularity
Granularity is the irrregular density structure of an exposed and processed area of film. The figure is based on the RMS (root-mean-square) measuring method. The smaller the figure is, the finer grain the film has. The RMS measuring method is intended to match an instrumentally found figure with the visu-al perception of the film granularity. Reference: – exposure: daylight – densitometry: visual filter (V l ) – measurement: diffuse density 1,0; 48 µm reading aperture
Resolving power
This is given as a figure in the appendix. It indicates the resolution limit in the rendition of adjacent finest details (e.g. lines in a matrix).
The resolving power is a purely visual criterion, which is greatly influenced by the contrast range.
Reference: lines per mm at contrast range 1.6 : 1 or 1000 : 1
Layer design of OPTIMA II 100 The continuous further development of coating technology permits thinner, and simultaneously more layers. The thinner layers enhance the sharpness, and the extra layers have separating, blocking, protecting and filtering functions. They optimise not only the colour rendition, but also the sharpness and storage life as well. A schematic representation is shown on right, taking the OPTIMA II 100 as an example.
Total layer thickness (without base): 16 m mm mmm (Other films: see pages 7 to 10.)
Emulsion base
The film base is made of acetyl cellulose or polyester. The type and thickness of the base are given on pages 7 to 10.Film identification
Process colour coding on 35 mm films
Margin bars on the cartridge
· red Process AP 70/C-41
· blue Process AP 44/E-6
· grey BW negative processing
Process colour coding on roll films
Overprint at end of backing paper
· yellow Process AP 70/C-41
· blue Process AP 44/E-6
· black BW negative processing
Exposed margin marks
1. Film type + emulsion number
6 AGFACOLOR negative films AGFACOLOR AGFACOLOR AGFACOLOR OPTIMA II 100 OPTIMA II 200 OPTIMA II 400
Exposure reading (seconds) 1 /10 000 – 1 10 100 1 /10 000 – 1 10 100 1 /10 000 – 1 10 100
Exposure adjustment (f-stops) 0 + ½ + 1½ 0 + 1 + 2 0 + 1 + 2 Reciprocity effect Appendix: Characteristic values and curves of the various films
AGFACOLOR negative films AGFACOLOR AGFACOLOR PORTRAIT XPS 160 ULTRA 50
Exposure reading (seconds) 1 /10 000 – 1 10 100 1 /10 000 – 1 10 100
Exposure adjustment (f-stops) 0 + 1 + 2 0 + 1 + 2
AGFACHROME slide films AGFACHROME AGFACHROME AGFACHROME RSX II 50 RSX II 100 RSX II 200
Exposure reading (seconds) 1 /10 000 – 1 10 100 1 /10 000 – 1 10 100 1 /10 000 – 1 10 100
Exposure adjustment (f-stops) 0 + ½ + 1 0 + ½ + 1 0 + 1 + 2
Filtration (CC filter) 0 05 B 10 B 0 05 B 10 B 0 075 Y 15 Y 05 C
AGFAPAN negative films AGFAPAN AGFAPAN AGFAPAN APX 25 APX 100 APX 400
Exposure reading (seconds) 1 /10 000 - ½ 1 10 100 1 /10 000 - ½ 1 10 100 1 /10 000 - ½ 1 10 100
Exposure adjustment (f-stops) 0 + 1½ + 1 + 2 0 + 1 + 2 + 3 0 + 1 + 2 + 3
Developing adjustment (%) 0 0 0 0 0 – 10 – 25 – 35 0 – 10 – 25 – 35 AGFA black and white slide film AGFA SCALA 200x
Exposure reading (seconds) 1 /10 000 - ½ 1 10 100
Exposure adjustment (f-stops) 0 + ½ + 1 + 2 Notch coding on sheet films
The film type can be identified from the type of notching. The emulsion side is facing the viewer when the notching in upright format is at top right.
AGFACOLOR OPTIMA II 100
AGFACHROME RSX II 100
AGFAPAN APX 100
AGFA SCALA 200x

"technical data (agfa)" es una pieza de iñaki bonillas publicada en masa_adherida; el sitio periferico del museo carrillo gil en la ciudad de méxico.
http://www.macg.org.mx/enred/td/default.htm 

mario garcia torres
http://www.macg.org.mx
http://www.enconstruccion.org











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