NASA technical library

[JaZ99]

Hi, I was unaware, there is quite a big library of NASA documents regarding film. I've came across it searching for methods of reciprocity failure testing.

This is one is very cool:

A series of experiments were undertaken to assess the feasibility of defogging color film by the techniques of optical spatial filtering. A coherent optical processor was built using red, blue, and green laser light input and specially designed Fourier transformation lenses. An array of spatial filters was fabricated on black and white emulsion slides using the coherent optical processor. The technique was first applied to laboratory white light fogged film, and the results were successful. However, when the same technique was applied to some original Apollo X radiation fogged color negatives, the results showed no similar restoration. Examples of each experiment are presented and possible reasons for the lack of restoration in the Apollo films are discussed.

http://ntrs.nasa.gov/search.jsp?R=19750023346

This is another one regarding film reciprocity, temperature and age:

http://ntrs.nasa.gov/search.jsp?R=19870020369

 

[jvo]

yeh well that certainly explains it!!!!

jvo