This popular photograph of the snow-covered Sierra Nevada was taken at Lick Observatory, over 100 miles away, on December 13, 1931, using early infrared (IR) technology. Panoramas are printed with archival inks on heavy matte paper in three styles. They can be purchased via the Publications Office.
This photograph was the culmination of a series of experiments in long-range IR photography at Lick Observatory dating back to 1920. Infrared radiation penetrates haze and dust-laden air much more effectively than light, producing sharper and more detailed photographs.
Lick photographer J. Fred Chappell used a special long-focus lens, an infrared filter, and a glass astronomical photographic plate which had been sensitized for infrared radiation to capture the original photo. Most likely the camera that he used was built around a 2-1/4-inch diameter Voigtlander lens (stopped down), with 60-inch focal length.
Panorama Styles Available
Single Panorama (no labels): 4.5" x 19"
Single Panorama with peak labels: 4.5" x 19"
Double Panorama with peak labels on inset: 6.5" x 19"