Re: [OM] Don't trust all you read on the internet

[Chuck Norcutt]

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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