[ATM] Wavelengths of light

[vladimir sacek]

Dominic-Luc Webb wrote:
>
> On Sun, 5 Aug 2007, vladimir sacek wrote:
>
>> What is less known is that eye contrast sensitivity also changes with 
>> both,
>> detail size on the retina (Campbell-Robson chart), and illumination 
>> level.
>> In bright light, the perceived contrast peaks at about 7-8 arc minutes
>> detail size (typical MTF bright/light bars form), while dropping nearly
>> five fold at ~1-degree detail size and to near-zero at the eye resolution
>> limit of ~1 arc minute (~60 cycles/degree).
>
> Even less known is that faint grey-scale objects can appear green.

 And, of course, "There are more things in heaven and Earth, Horatio, than 
are dreamt of in your philosophy."

Vlad