Re: A PVA for printing "gum" from Mike Ware

From: martinm <martinm@gawab.com>
Subject: Re: A PVA for printing "gum" from Mike Ware
Date: Sun, 02 Apr 2006 13:53:26 +0200

> The main goal is speed enhancement at 532nm. It may turn out that UV
> pre-exposure will greatly increase speed for green light. No doubt, speed
> will remain weak compared to silver halides. But DCG has some features
> silver halides cannot rival: notably bandwidth and index modulation. By the
> way, 532nm is the line where reasonably priced lasers fit for holography
> (single frequency lasers) can be found relatively easily. So DCG holography
> becomes accessible to amateur holographers. Moreover, that green line seems
> to be important in the context of full color DCG. In addition, that green
> wavelength being highly visible, is very pleasant to work with.

I don't really understand why you want to use 532nm for imagewise
exposure. Laser may be cheap there, but then don't you have to expose
and process in safelight?
Received on Sun Apr 2 18:14:24 2006