Sand Dollar two channel

Back on June 5th I wrote about some problems producing a master two channel of a sand dollar. I’ve since worked out the problems and made a few copies.

I don’t know exactly what was causing the errors but I was able to get a good master after some trials.

The reflection copies are nice and bright with the front and back visible as you move from left to right.

The master hologram was shot on PFG-01 pre-treated in TEA (washed out before exposure) developed in JD2 developer and bleached in EDTA with a light post treatment in ascorbic acid.

The copies were pre-treated with 4% TEA and otherwise processed the same as the master.

Author: Michael Harrison

Husband, Programmer, Irish dancer, tinkerer, astronomer, layabout (as much as possible)

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