Re: Hello?

[George L Smyth <GLSmyth@xxxxxxx>]

Robert Long wrote:
> 

> I suppose that the clouds to the naked eye were thin enough and bluish
> enough that they couldn't be resolved from the surrounding blue-gray
> of the sky at the horizon.  Through the red filter and the polarizer,
> which rendered the sky quite dark, the spectral differance, such as it
> was, was translated into a value difference that rendered the clouds
> visible.  But I still find even that explanation only partially
> satisfying.

I wear sunglasses all the time inthe summer.  They aren't the dark kind,
but are tinted a dark shade of yellow.  I constantly note major
differences in what I see with and without the glasses - clouds being
one of the major elements.  As yellow and red are the opposite of cyan
and blue, it's no wonder you're noticing a difference.  Depending upon
the light, the addition of a polarizer makes the difference even more
dramatic.

george

-- 
 Handmade Photographic Images     
  http://www2.ari.net/glsmyth/

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Topic No. 13