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7212 Reciprocity and Color Shifting in Long Exposure.


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#1 Steve Phipps

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Posted 06 August 2007 - 06:51 PM

I did a short film project evaluating the reciprocity and color-shifting characteristics of Kodak 7212 in long exposure. The film shows three sample frames: exposure durations of 1/40s, 45 minutes, and 60 minutes. The 45 and 60 minute exposures evaluate the effect of a Wratten CC10R, which is recommended by Kodak for exposures in the range of both 1 and 10 seconds.

If you?re interested, an mpeg and a DVD cover for the project is in a zip package here:

http://rapidshare.co...Reciprocity.zip

The film is NTSC 720x480, 5 minutes plus a 10-second bars and tone header. The combined files are about 45 megs, zipped, and 110 megs, unpacked.
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#2 Steve Phipps

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Posted 27 March 2008 - 06:52 PM

an mpeg and a DVD cover for the project is in a zip package here:

Re-uploaded, on request. (The download link was broken. What happens with Rapidshare is that after ninety days of no downloads, a file is deleted. If you find the link is broken and want the file, please send me a PM, and I'll re-upload it.)

http://rapidshare.co...procityTest.zip

I should have also posted screenshots from the test:

Exposure duration of 1/40s:

Posted Image


Exposure duration of 60 minutes, with a CC10R filter:

Posted Image


Lens is a 50/1.8 AFD Nikon.
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