About a buck will buy you a mirrored Christmas tree ornament. As long
as you've got a flashlight (what astronomer doesn't? 8^O), you're
already
in business.

M.

> -----Original Message-----
> Sent: Wednesday, April 01, 1998 5:49 PM
> Subject: [M]: RE: Artificial Star Test
>
> Precision pin holes are available at moderate prices from most
> Electron Microscope supply
> houses, check the internet, they call them platinum apatures. $10
> will typically buy you a
> 3.5mm diameter disk of platinum with a 20 micron laser cut hole, round
> to about 50nm.
>
> I hoped this helped.
>
> Chris Frye

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