Yebbut nobody has picked up on the worst aspect of Wayne's quoted passage
... wait for it ....
The writer uses "deteriorated" as a .... transitive verb!
Further comment would be wasted.
Piers
-----Original Message-----
From: olympus
[mailto:olympus-bounces+piers.hemy=gmail.com@xxxxxxxxxxxxxxxxx] On Behalf Of
Chuck Norcutt
Sent: 22 September 2015 16:31
To: Olympus Camera Discussion
Subject: Re: [OM] Don't trust all you read on the internet
And he is probably relating f/16 vs. f/11 to increased exposure time and
therefore diffraction must be caused by longer exposure. :-)
Some day he'll be corrected.
Chuck Norcutt
On 9/21/2015 2:09 PM, Moose wrote:
> On 9/20/2015 11:39 PM, Wayne Harridge wrote:
>> I came across this strange misconception about exposure time and
>> diffraction:
>>
>> " I try to stick with an aperture of around f8 and
>> not go higher than f11, meaning I try to keep
>> the aperture close to the sweet spot of my lens,
>> so I can capture the clearest and sharpest image
>> I can capture. This is important in long exposure
>> since the longer the exposure the more the RAW
>> file will be exposed to diffraction (which happens
>> at apertures of f16 or more) a phenomenon
>> that deteriorates the clarity of the images."
>
> It's because the writer doesn't know what diffraction is, only that it's
> a bad thing.
>
> Diffracted Moose
>
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