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Creeping Zinnia - UV pattern when bee-ready?
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PostPosted: Wed May 05, 2010 9:27 pm    Post subject: Creeping Zinnia - UV pattern when bee-ready? Reply with quote
I noticed that on a Creeping Zinnia young flowers (in front) do not show a prominent UV pattern, but others do (the one in the back), which are ready for pollination.

Visible image:


Simulated bee vision image:


Close-ups of the above shots:





I wonder if that UV pattern would disappear when pollination has successfully happened?


PostPosted: Wed May 05, 2010 11:04 pm    Post subject: Reply with quote
Interesting! maybe you discovered something?


PostPosted: Wed May 05, 2010 11:18 pm    Post subject: Reply with quote
This was just coincidence but I have seen that before. Will find more examples and see if there is a rule...


PostPosted: Wed May 05, 2010 11:34 pm    Post subject: Reply with quote
I also wonder about the color spectrum. These show the "opposing"
secondary color from a color wheel. In other words, green goes to
blue (secondary), rather than green goes to magenta (primary)?

Do other colors also bring up the opposition secondary color in UV?

Primary:
red to yellow
green to red
orange to cyan

Secondary:
red to green
green to light magenta
orange to dark green



PostPosted: Thu May 06, 2010 12:57 am    Post subject: Reply with quote
Love the first shot and its close-up. If you could just get focusing better, Klaus, this would be great! Laughing Superb detail and clarity! (as usual) Wink


PostPosted: Thu May 06, 2010 5:53 am    Post subject: Reply with quote
Laurence wrote:
I also wonder about the color spectrum. These show the "opposing"
secondary color from a color wheel. In other words, green goes to
blue (secondary), rather than green goes to magenta (primary)?

Do other colors also bring up the opposition secondary color in UV?

Primary:
red to yellow
green to red
orange to cyan

Secondary:
red to green
green to light magenta
orange to dark green



It is much more complicated than that Larry. My method maps a tetrachromatic color space (4 dimensional UIV-B-G-R) into a trichomatic (3 dimensional B-G-R) color space, so one color will get lost and I have chosen to map UV into the blue channel, so blue gets lost i.e. replaced by UV, then appearing as blue. So this means it will not work with blue flowers. Green stays green and red stays red.


PostPosted: Thu May 06, 2010 5:55 am    Post subject: Reply with quote
Katastrofo wrote:
Love the first shot and its close-up. If you could just get focusing better, Klaus, this would be great! Laughing Superb detail and clarity! (as usual) Wink


It was not intended like that but a coincidential find, so of course I will do more about that and be assured that then both interesting flowers will be in focus.


PostPosted: Thu May 06, 2010 6:04 am    Post subject: Reply with quote
kds315* wrote:
Katastrofo wrote:
Love the first shot and its close-up. If you could just get focusing better, Klaus, this would be great! Laughing Superb detail and clarity! (as usual) Wink


It was not intended like that but a coincidential find, so of course I will do more about that and be assured that then both interesting flowers will be in focus.


Klaus, I was being facetious. The one flower is in superb focus as are
the leaf detail. Your macro technique has been inspirational.


PostPosted: Thu May 06, 2010 6:08 am    Post subject: Reply with quote
Thanks, I try to! Need to shoot anyway much more in high quality for my coming book!


PostPosted: Thu May 06, 2010 11:29 am    Post subject: Reply with quote
Ask a honeybee drone. He could tell you for sure.
Nice shots. Informative.


PostPosted: Thu May 06, 2010 11:34 am    Post subject: Reply with quote
I did, this is how I developed my filtering technique Wink
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