rlp@cbscd5.UUCP (08/02/83)
Does anyone have information about the reciprocity characteristics of Kodak's new VR 1000 film? (ie is this stuff good for astrophotography?). R. L. Platt cbscd5!rlp
paulp@tekcad.UUCP (08/05/83)
#R:cbscd5:-37200:tekcad:14300002:000:819
tekcad!paulp Aug 4 10:25:00 1983
Sky & Telescope in their March 1983 issue reviewed the VR1000 film.
Briefly:
recorded slightly more stars than Kodacolor 400. Ektachrome
did as well with more vivid colors.
sky fog is a problem.
wider dynamic range makes it more suitable for nebulae.
also has better red sensitivity for hydrogen alpha at 6563 A.
no cooling test was attempted though ambient was 7 F. best
guess is it has about the same reciprocity failure as the ASA
400 emulsions.
an excellent film for auroras.
Astronomy magazine has probably reviewed the film by now in more detail.
Paul Pomes
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