tpe
TPF Noob!
- Joined
- Nov 18, 2005
- Messages
- 964
- Reaction score
- 12
- Location
- Copenhagen Denmark
- Website
- www.scientificillustration.net
- Can others edit my Photos
- Photos OK to edit
These three are all of the same species of butterfly. The first a portrait of the blue emporer, O.K it doesnt look blue but that is because it has to open its wings, this guy didn't in the half an hour or so that let me take pictures, then it flew away with beautiful blue flashes to say so long. Fortunatly on the ground near by there was a dead one, that looked in very bad shape but there were a couple of bits of the wing that were ok, boy how the wife hates me picking up bits of dead insects. The second one is of one of the wing eye spots, and the third of the scales on the upper side of the wing, they give their blue colour by some kind of light refraction between the ridges of the scales. The space between the ridges gets to less than the wave length of light, or something like that, allowing only certain frequencies to escape, in this case blue. I was pleased to get the third pic as most of my attempts have either stopped being blue or not shown enough detail. Having looked at the down sized pic, going from 4000 to 800 pixels has not helped in making the ridges visable, you have to almost imagine them, you can see them on some scales but not to well sorry.
Blue Emporer Butterfly
Section of wing spot from under side of wing.
Blue flash from upper side of the same area of the wing. The ridges follow the direction of the scales and are giving the noise pattern on the scales at the screen resolution here.
tim
Blue Emporer Butterfly
Section of wing spot from under side of wing.
Blue flash from upper side of the same area of the wing. The ridges follow the direction of the scales and are giving the noise pattern on the scales at the screen resolution here.
tim