Some aspects of photography with a small Schmidt camera

Details Some aspects of photography with a small Schmidt camera Some aspects of photography with a small Schmidt camera

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984asph.conf..135m&link_type=abstract

In its Astron. Phot. 1984 p 135-141 (SEE N85-16102 07-35)

Astronomy and Astrophysics

Astronomy

Astronomical Photography, Photographic Processing, Schmidt Cameras, Color Photography, Gas Density, Image Contrast, Photographic Film, Reproduction (Copying)

Scientific paper

Observational and darkroom techniques used with a 0.35 m, f 2.9 Schmidt camera are described. Kodak 2415 film, hypersensitized by 2.5 hr in dry nitrogen at 65 C followed by 5 min in 100% hydrogen is used. Faint features are printed using superimposed negatives. High contrast copies are made using Kodak LPD7 film. The LPD7 prints are copied onto equidensity film to study gas density gradients in galaxies and nebulae. High contrast, full color saturated prints are produced from monochrome positive copies by exposing the copy transparencies through filters onto Cibabhrome A2 paper, and applying dodging and shading techniques.

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