[ATM] Wavelengths of light

[Dominic-Luc Webb]

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.

Dominic