Adapting a 10-inch Astrograph for Sheet Film

Details Adapting a 10-inch Astrograph for Sheet Film Adapting a 10-inch Astrograph for Sheet Film

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991javso..20..248w&link_type=abstract

The Journal of the American Association of Variable Star Observers, vol. 20, no. 2, p. 248-249

Physics

Scientific paper

The Link Observatory 10-inch photographic refractor is designed to use 8x10 inch glass plates. Inexpensive sheet film can be used by holding the film flat behind a sheet of clear glass in the plateholder. Experiments with panchromatic film and yellow or red filters were not very satisfactory, due to the blue-corrected objective's steep focal gradient at longer wavelengths. However, blue-sensitive Kodak SB-5 X-ray film produces excellent images.

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