On 7 Mar, 17:43, " cupra" wrote:
Vivid colours (only auto-saturated the image, it *was* this colourful!)

http://www.flickr.com/photos/treetop...os/2316259493/

That is a superb photo. I would never have thought that pylons could
add to a scene but they do in this case and very well too.

A little experiment worth trying next time there's a rainbow. Look at
it through a polarising filter (or polarised sunglasses) and rotate
the lens. It provides a superb demonstration that the light from a
rainbow is polarised. I have yet to try the experiment with a sundog
(parhelia) or other atmospheric optical phenomena.

Jack