Shot in the Dark -- grainless, matte finish glass?

From: jlafferty (ideaspora_at_hotmail-dot-com.no-spam.invalid)
Date: 03/16/05 

Date: 15 Mar 2005 23:35:43 -0600

Hey,

I've mentioned in other threads here I'm developing an adapter that
mounts 35mm lenses on DV cameras, to get the manual focus and DOF of
a 35mm lens. Here's the link to a
tutorial describing an older prototype, for any interested.

On the offhand chance that some of you in your expertise could school
me on creating a focal plain free of visible grain, I'm posting this
to seek your advice.

The project originally started with a piece of thin plastic hand
ground with very fine sandpaper, then moved to glass ground with 5
micron aluminum oxide.

Now, I've been playing with sandwiching as thin a layer as is possible
with the tools at my disposal ("the kitchen") of microcrystalline wax
between two layers of glass -- the grain looks pretty fine but the
image doesn't yet resolve as well as with the AO ground glass.

I've searched high and low for "fogged" glass or plastic, coated or
fumed that catches an image without dispersing too much light, and
without showing its grain on tape -- all with no more luck than the
above two techniques. I've been to Canal Plastics here in NYC and
looked over their samples, I've tried acid-etching, I've even tried
the sprayable glass frost.

Any advice? Thanks!

- jim

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