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Automatic exposure control for space sequential camera
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sharpsteen, J. T. Stoap, L. J. McAtee Jr., G. E. Solheim, C. D. |
| Copyright Year | 1975 |
| Description | The final report for the automatic exposure control study for space sequential cameras, for the NASA Johnson Space Center is presented. The material is shown in the same sequence that the work was performed. The purpose of the automatic exposure control is to automatically control the lens iris as well as the camera shutter so that the subject is properly exposed on the film. A study of design approaches is presented. Analysis of the light range of the spectrum covered indicates that the practical range would be from approximately 20 to 6,000 foot-lamberts, or about nine f-stops. Observation of film available from space flights shows that optimum scene illumination is apparently not present in vehicle interior photography as well as in vehicle-to-vehicle situations. The evaluation test procedure for a breadboard, and the results, which provided information for the design of a brassboard are given. |
| File Size | 13867167 |
| Page Count | 194 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750018270 |
| Archival Resource Key | ark:/13960/t1wd8n53v |
| Language | English |
| Publisher Date | 1975-04-01 |
| Access Restriction | Open |
| Subject Keyword | Breadboard Models Space Shuttles Focusing Automatic Control Cameras Exposure Irises Mechanical Apertures Design Analysis Remote Control Spaceborne Photography Camera Shutters Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
