GR translation: lens openings forever changing

[David Morris]

It's called an aperture.

On Fri, Jun 24, 2011 at 6:08 AM, Paul Mackin <mackin.paul at verizon.net> wrote:
> On 6/24/2011 5:15 AM, Mike Jing wrote:
>
> P75.15-17  ..., sunsets on the promenade, lens openings forever changing for
> the sea light, blown now brisk, now sedate about the sky, ...
>
> What are these "lens openings"?  And what is being "blown about the sky"?
>
> Well, on cameras you control the depth of field (what comes into focus)  by changing the size of the lens opening, so I'd guess here it just means what is or isn't visible.
>
> P
>