Emulsions

Photography, Publication in the Diário da República - Despacho n.º 8645/2020 - 08/09/2020

6 ECTS; 3º Ano, 1º Semestre, 45,0 PL + 30,0 TP + 5,0 OT

Lecturer
- Marta Sicurella
- Alexandre José de Magalhães Figueiredo

Prerequisites
NA

Objectives
a) Study of photographic processes using black and white bromide or silver chloride emulsion.
b) Production processes of an emulsion, both industrial and small scale, in a photographic laboratory.
c) Studies of how the choice of chemicals, the different production technologies and the variation of parameters can influence the characteristics of the emulsion manufactured.
d) Study of the theories of latent image and revelation
e) Special effects on emulsions and infrared emulsions from a practical perspective.
f) Realization of practical exercises with commercially produced emulsion and with several emulsions produced entirely by the students, at school, from rudimentary materials and equipment.

Program
1) Experience with infrared sensitive photographic film.
2) Experience with industrial photographic emulsion:
a) Practice of printing on paper
b) Practice of printing on various media (wood, textiles, paper, etc.), with the "handcrafted" revelation emulsion produced in the context of theoretical-practical classes or using commercial emulsion.
3) Preparation and testing of washed emulsion for revelation:
a) Practice of producing a negative in glass, with the "handcrafted" revelation emulsion produced in the context of a theoretical-practical class or with recourse to commercial emulsion.
b) Capture in large format chamber and positivation in RC paper.

Last practical classes - Realization of the final project of the UC.

Evaluation Methodology
The evaluation is continuous and consists:
Attendance,Participation,Attendance-5%.
3 practical exercises-30%.
1 escrito-25% evaluation test
Final project-40%
Practical sheets or reports have to be delivered within 1 week after they have been made under the risk of penalty (1 amount/day delay). All elements of evaluation must be delivered by the last lesson of the contact period.
To approve the student must, at the end of the Normal Season, have delivered all the practical exercises (with a minimum score of 8/20 values per day), have taken the written test and, have
deliver the final project.
Obtaining a score of less than 8/20 in any practical exercise or not
surrendering them means failing/excluding exams and evaluation times
subsequent. In order to pass, it must therefore obtain a minimum score of 9.5/20.
weighted average of the above elements.
Examination Season: The only elements of assessment for improvement are, assessment test and
final project. The proposed student must a) take an oral exam; b) improve the
final project, c) the combination of the above. Once the improvement has been achieved, the student must
obtain a minimum score of 9.5/20 values on the weighted average of the 4 assessment elements
proposed above.
Resource/Special/Finalist Season: The same strategy applies as for the examination period.

Bibliography
- White, L. (1995). Infrared Photography Handbook. New York: Amherst Media Inc.
- Wall, E. (1929). Photographic Emultions, their preparation and coating on glass, celluloid and paper, experimentally and on large scale. Boston: American Photographic Publishing Co.
- Zakia, R. e Current, I. e Compton, J. e Stroebel, L. (2000). Photographic Materials and Processes. London: Focal Press
- Jones, S. e Reed, M. (2001). Silver Gelatin, a User's Guide to Liquid Photographic Emultion. London: Argentum, Aurum Press Limited

Method of interaction
A - Method of expositive interaction, theoretical classes taught using the projection interface
B - Laboratory practice where the knowledge acquired in the context of theoretical classes is experimented and applied.

Software used in class
Adobe Photoshop
Silverfast