NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Reciprocity testing of Kodak film type SO-289 multispectral infrared aerial filmKodak multispectral infrared aerial film type SO-289 was tested for reciprocity characteristics because of the variance between the I-B sensitometer exposure times (8 seconds and 4 seconds) and the camera exposure time (1/500 second) used on the ASTP stratospheric aerosol measurement project. Test exposures were made on the flight emulsion using a Mead star system sensitometer, the films were processed to ASTP control standards, and the resulting densities read and reciprocity data calculated. It was found that less exposure was required to produce a typical density (1.3) at 1/500 second exposure time than at an 8 second exposure time. This exposure factor was 2.8.
Document ID
19750023347
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lockwood, H. E. (Technicolor Graphic Services, Inc. Houston, TX, United States)
Date Acquired
September 3, 2013
Publication Date
August 1, 1975
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-CR-144427
JSC-09908
Accession Number
75N31420
Funding Number(s)
CONTRACT_GRANT: NAS9-11500
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available