14mm f2.5: Is it tack sharp? Sometimes? (Images)

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Loga Senior Member • Posts: 1,472
14mm f2.5: Is it tack sharp? Sometimes? (Images)

Hi All,

I have a Pana 14mm f2.5, and I love it. It is considered as having weak sharpness in the corners, and sometimes I see this. However, sometimes I get tack-sharp images! How can this be?

Look at his image:

Look at the corners!

And compare with this:

or this:

Is this simply a DOF-related issue? Or is this field curvature? Can be field curvature cured by increasing DOF?

Many thanks,

Loga

 Loga's gear list:Loga's gear list
Panasonic Lumix DMC-GF1 Panasonic Lumix DMC-GF2 Panasonic Lumix G 14mm F2.5 ASPH Panasonic Leica Summilux DG 25mm F1.4 Olympus M.Zuiko Digital 45mm F1.8 +3 more
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