A new method for the measurement of photographic filter factors
By: by Raymond Davis, photographic technologist, Bureau of Standards. February 5, 1921 ...
Series: United States. Bureau of Standards. Scientific papers,; no. 409
Publisher: Govt. Print. Off.
Published: 1921
Place of publication: Washington
Language: eng
Number of pages: 89
Subjects: Photographic optics.
Other titles: Measurement of filter factors.
Notes: Plate printed on both sides.
Running title: Measurement of filter factors.