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Morpho sulkowski... another look

 
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Charles Krebs



Joined: 01 Aug 2006
Posts: 5805
Location: Issaquah, WA USA

PostPosted: Fri Jul 11, 2008 11:13 pm    Post subject: Morpho sulkowski... another look Reply with quote

Craig's post of about a week ago caused me to get out a Morpho sulkowski specimen I have. It is an interesting one to look at in terms of iridescence. Here I have photographed the exact same wing section. The only difference was the position of the light. The top image shows no iridescence. The scales appear to be translucent with a honey color. But when the light is moved around things sure do change! We can't see the micro-structures that cause this with the light microscope, they're too small. This is where an electron microscope comes in. But we can see something the electron microscope can't... the wonderful color display!

This is a great reference:
http://newton.ex.ac.uk/research/emag/butterflies/iridescence_in_nature.html

All three images: Nikon D300 with Nikon M Plan 20/040 ELWD on bellows.






Sorry I have not been able to participate in the forum too much lately. It's going to be really tough for me time-wise, at least through the summer. But I do peek in from time to time to see what people are up to!
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augusthouse



Joined: 16 Sep 2006
Posts: 1195
Location: New South Wales Australia

PostPosted: Sat Jul 12, 2008 2:45 am    Post subject: Reply with quote

Beautiful Charlie!

The material in the reference link you have provided is priceless!

Craig
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beetleman



Joined: 04 Aug 2006
Posts: 3578
Location: Southern New Hampshire USA

PostPosted: Sun Jul 13, 2008 7:25 am    Post subject: Reply with quote

Excellent demo of the iridescence Charles.
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lauriek
Site Admin


Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Mon Jul 21, 2008 10:58 am    Post subject: Reply with quote

Wow, somehow I managed to miss this post, spectacular!! Smile

I presume it's the iridescence which causes that sort of noisy look to the blue colour?!
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