From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Table of contents for the S.E.I. Photometer manual.
| Identifier | ExFiles\Box 168a\3\ img520 | |
| Date | 1st May 1950 guessed | |
| Contents Introduction—The S.E.I. Photometer . . . . . 5 Working Instructions for Estimating Camera Exposures . . . . . . . . 7 Principles of Construction . . . . . . . 9 General Instructions for Maintenance . . . . . 13 Other Applications . . . . . . . 17 to 20 Highlight and Keytone Methods for Negative Work Copying Projection Printing Brightness and Illumination Measurements . 21 Examples of Exposure Estimation . . . 23 3 | ||