Archive for the ‘Science’ Category

The Myth of Solarization

Monday, December 26th, 2011

Solarization of modern films while in the camera is largely a myth.   Evidence for this is all around you if you have been shooting film. Look at the leader on ANY negatives you’ve had processed, which would have been exposed to the light since it was sticking out of the canister.   Its black.  Here is an example…

The negative on the left was handled in typical way, so perhaps 2-5 minutes of cumulative exposure to ambient light. The one of the right sat on a shelf in my office for 14 months, fully exposed to the sun for about 2 hours per day! There is no noticeable inversion, only a slight difference in light leakage past the felt.

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Old Science

Monday, September 26th, 2011

I’ve been cleaning out my basement and unboxing huge amounts of my “science junk” that has been packed away since we moved a couple years ago.   There is a photo contest coming up that I occasionally enter, here are a couple test shots featuring some of my collection.