From: "J&S" 
To: 
Reply-To: "J&S" 


Hi Guys,
     Dave Sleeter (are you still out there Dave?) did a good aggressive
investigation into solving the "seeing contrasty fringes on aluminized
surfaces" issue in the January - May 2002 timeframe, and came up with
what looks like the final solution, complete with photos and sources.
     Check the archives. Do a search on "photographing fringes" to get to
it, or just search May 2002.
     Here is a snip from one e-mail he posted. There is much more
information in previous posts he made.

SNIP-----------------------
 I decided to try a 100 watt
UNCOATED Mercury lamp and a Roscolux #89 moss green filter. ...For viewing
fringes on aluminized optical flats, this combination of lamp and filter
seems to work well. UNSNIP------------------

     There are some links to photos he posted too. I didn't check to see if
they still work, but I do remember they looked great - much better than
I've seen elsewhere.
     Good job Dave!

- Jim S.

--- BBBS/NT v4.01 Flag-5