gas hypersensitization

gas hypersensitization

(hypering) See hypersensitization.
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In my opinion the best medium-format color films for astrophotography are Kodak E200 and Fuji Provia 400F, both of which perform well without special treatment, such as gas hypersensitization. For 35-mm format, you might consider Kodak RG200, Kodak Supra 400, or Fuji HQ100.
Other than push processing in some cases, all the films tested for this article were shot without any gas hypersensitization or special treatment.
The Super G 800 Plus's "off-the-shelf" capability allows it to be used without gas hypersensitization, though hypering is recommended for long exposures.