Re: [PPLetterpress] Re: PP beard...
- Yikes. What's shorter than UV light that will still harden the pp?
On Dec 28, 2007, at 7:34 AM, richard seibert wrote:
> Seems to me the exposure angle of a well-made plate is a result of
> the index of refraction of the material.
> Light travels at different speeds in different mediums, so it changes
> angle when it enters a new medium.
> If one wanted to experiment with steeper shoulders, a higher
> frequency (shorter wavelength) light source might do it.
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