A short video sequence, by a colleague of mine in the same line of specialized photography (Dr. Klaus Schmitt, out of Weinheim, Germany) ... demonstrating the comparisons of color-vision ranges between humans, butterflies, and bees. It is now understood that bees and butterflies (and some species of birds, such as hummingbirds) can see other wavelengths of radiation OUTSIDE of human vision. UV-A radiation being one of those extended capabilities. The short video (see link below), demonstrates this. But, a quick explanation, below: - Humans generally can only see reds, greens, and blues within the visible bandwidth of radiation (between 400 and 700 nanometers of radiation bandwidth). - Butterflies can see those same reds, greens, and blues ... PLUS some UV-A (long-wave ultraviolet radiation) interlaced over those ranges (between 315 to 700 nanometers of radiation bandwidth). - Bees, on the other hand, can see greens, blues, and UV-A, but are incapable of seeing reds ... just as UV-A is invisible to humans (between 315 to 630 nanometers of radiation bandwidth). (Each flower is demonstrated in 3 photo comparisons: Human vision, butterfly vision, and bee vision.) All credit provided, to the photographer (K. Schmitt), editor (Robin Noorda), and musical track composer (Phantom Frank). https://youtube/watch?v=9CpEV9_JOv8
Posted on: Sat, 01 Nov 2014 17:56:54 +0000
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