Ocular : Fading color and brightness with magnification

[alex-w]

Original report by Fred_76: https://bugs.launchpad.net/stellarium/+bug/800837

In order to render the images correctly, one should be able to activate what the real observer is seeing in its telescope with naked eyes. The colours are fading away when light intensity is decreasing, and light intensity of surface objects is decreasing when the magnification increases.

Interesting links :
http://www.telescope-optics.net/eye_spectral_response.htm
http://en.wikipedia.org/wiki/Color_vision (see ref list)

Fred