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[OM] Re: Ultimate cheap macro -- take 2 (much cheaper, even more macro-y

Subject: [OM] Re: Ultimate cheap macro -- take 2 (much cheaper, even more macro-y)
From: "Wayne Harridge" <wayneharridge@xxxxxxxxxxxxxxx>
Date: Thu, 15 Mar 2007 18:45:16 +1100

  Does anyone know why closeups of metal have strange rainbow effects?

http://www.danielmitchell.net/sgal/index.php?gallery=./E330/macro2&image=nee
dle_eye.jpg

  has a distinctive pattern of coloured specks on the surface -- it's 
not CCD noise, so is it just diffraction effects or something optical 
like that?



It doesn't only happen with metal, take a close look at this TOPE image:

http://www.tope.nl/tope_show_entry.php?event=29&pic=8

...Wayne



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