Hints and Kinks

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This is a collection of simple tips and techniques worth sharing.

DCG

Effect of Overexposure

DCGdiffeff.jpg

Overexposure can have a drastic effect on dichromated gelatin. Test strips early and often are well advised.

The graph is from Lasers and Holography by Mehta and Rampal, 1993. It was reprinted from a paper by Chang and Leonard, "Dichromated gelatin for the fabrication of holographic optical elements," Applied Optics, 1979.


http://holoforum.org/forum/viewtopic.php?f=7&t=652