Photographing flowers

[hannu.jarventaus@xxxxxxxx]

Hello!

I have questions about photographing flowers in the spring time,
especially taking photos of blue flowers.

Almost every time I have photographed blue flowers they come out
with some sort of red or magenta cast. Light blue turns to pink and 
deeper blue turns to magenta or red.

I have seen various explanations for this in photographig magazines.
Some say that it has something to do with flowers different reflectance
to the infrared light, and some say it is the ultraviolet light.

Now I would like to know what is the explanation for this phenomenon?

The color shift happens with both color negative and slide film when
photographing blue flowers. Why only blue?
Could this be avoided with some special filtering?

If this is connected to the infrared light, then maybe there are
strong effects to be seen when using IR film?

How sensitive to the IR and UV light are the normal
colour negative and slide films?

Maybe I have now too many questions, but  I hope there are some
experts in this list who could give some answers


Hannu Jarventaus
Espoo, Finland

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