GR translation: lens openings forever changing

[Paul Mackin]

On 6/24/2011 8:38 AM, David Morris wrote:
> It's called an aperture.

Yeah, that's the word.  People don't have to worry so much about these 
things today but back in the Nikon F days you had to know  all that stuff.

I think the verb "blown" was used to suggest chaotic movement of the 
images, as  wind might produce.

P
> 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
>>