ATM "Focaultgrams" images

[Ricardo Dunna <rdunna@apit.furnas.gov.br>]

   I took some nice pictures of my mirror's Focault image. I've never seen
pictures like these on the internet, in spite of its simplicity.
   It was about a 28 cm , 20mm thick tabletop glass, taken with 150 mm
telephoto lens. All surface details are easily visible and were enhanced
with unsharp masking.
   I would suggest some more active ATM to place on a site images like these
showing correction of defects on a before--stroke/time--after basis. That
would be great to help all ATM'rs.
   I'll update images along with my progress with that mirror (next steps
are smoothing surface ripple and fine tuning on figure).
   Please take a look at :
   http://www.geocities.com/CapeCanaveral/3505/atm.htm