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Field Stereo Viewers for Aerial Photography

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Portable stereo field viewers using color transparencies for three aerial film formats--70 mm, 9 by 9 inch, and panoramic (5 by 50 inch)--were developed for surveys using multistage techniques to appraise bark beetle damage. The three instruments are light in weight, compact, illuminated by indirect or reflected sunlight, and constructed of readily available materials. They can be built by anyone with good mechanical ability and the proper tools.

Document Type: Journal Article

Affiliations: Master Machinist, Retired, from the Department of Agricultural Engineering, University of California at Davis

Publication date: 1981-07-01

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

    Also published by SAF:
    Forest Science
    Other SAF Publications
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