7212 Reciprocity and Color Shifting in Long Exposure.

[Steve Phipps]

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.com/files/47405236/7212_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.

[Steve Phipps]

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.com/files/102894519/7212...procityTest.zip

 

I should have also posted screenshots from the test:

 

Exposure duration of 1/40s:

 

Exposure duration of 60 minutes, with a CC10R filter:

 

Lens is a 50/1.8 AFD Nikon.