Diffraction Limit

Started Aug 28, 2013 | Discussions thread
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Paul De Bra
Paul De Bra Forum Pro • Posts: 12,083
It all depends on the definition of "noticeable".
1

With a sharp lens mounted on the E-M5 you can certainly see the effect of diffraction at f/8 versus e.g. f/5.6 when looking carefully at 100% pixel level on a sharp monitor. Does that qualify as noticeable?

I typically view my images on a 1920x1200 pixel 24" monitor. At that resolution and monitor size such measurable difference in sharpness is not noticeable. When I take shots with the 12-50 or 20mm there is no noticeable difference in sharpness on my monitor. When viewed at 100% there is a visible difference, and also a visible decrease in sharpness on the 20mm when going from f/5.6 to f/8. But for practical use there is no noticeable difference.

Most of the discussion about diffraction is about differences and softening that isn't really visible when admiring a photo, only when pixel-peeping.

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Slowly learning to use the Olympus OM-D E-M5.
Public pictures at http://debra.zenfolio.com/.

 Paul De Bra's gear list:Paul De Bra's gear list
Fujifilm FinePix F200EXR Olympus OM-D E-M5 Olympus M.Zuiko Digital ED 9-18mm F4.0-5.6 Panasonic Lumix G 20mm F1.7 ASPH Olympus M.Zuiko Digital 45mm F1.8 +5 more
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