cm.
pupil size: cm.
About 
at density of 
.
About 
at density of 
.
Resolution of about 2 arc minutes.
Cone density matches diffraction limit: 
. Cone spacing of about 
in optic nerve firing at 10Hz rate. Carrying 
Comparing to TV which has 
6 MHz. 
. 
, 
. So 
. Angular scale of picture
elements is 
.