Question to vanda growers with BLUE vandas

[Kali Hibiscus]

Originally Posted by DelawareJim

There are no true blue flowers in nature. All "blues" are actually various shades of violet that appears blue because of how the cells reflect light. Also, there are no "blue" birds in nature either. They're all grey, but they appear blue because of how the light is reflected off the feathers. (Sorry; the "bluebird of happiness" is actually grey.)

In modern digital photography, "blue" flowers appear unnaturally blue because of a phenomenon called the "reverse Ageratum effect" where the digital sensors either perceive more blue than is seen by the human eye or because of over correction by the processor. This is in contrast to the old "Ageratum effect" from color film days where the effect is believed to be based on “an anomalous reflectance due to the fact that some pigments reflect infrared light that is picked up as red by the film“. This was first discovered while photographing Ageratums for the first colour seed catalogues.

Cheers.
Jim

This is why I take my pictures in Raw format ( I have DSLR) and correct the color to what I saw with my own eyes. When I use my point in shoot camera the colors never are to true color.

In the hibiscus world they use the word blue but there are no true blue hibiscus. so are greyish with some purple pigment so it gives the appearance of blue.