GR translation: lens openings forever changing

[Paul Mackin]

On 6/24/2011 9:49 AM, Jed Kelestron wrote:
> The preceding "from summers of staring" suggests that the "lens
> openings" refers to the iris (aperture) of the eye constantly
> adjusting to the brightening and darkening of the light on the coast.
>
that may be better than the camera analogy.

Depth of field isnt really an issue when looking off into the distance.  
Only for close up.
The issue is how much light to let in.