Panasonic Lumix S Pro 70-200mm F4 OIS Review
Panasonic Lumix S Pro 70-200mm F4 OIS Sharpness at 100mm
Our sharpness tests are carried out by photographing a real-world subject rather than a test chart. The Panasonic Lumix Pro 70-200mm f/4 OIS Lens was attached to a Panasonic Lumix S1R, which in turn was mounted on a sturdy tripod. Self-timer mode was activated to steady the camera completely. Any slight tonal changes you may see across the crops are a result of slight changes in natural light during the shooting session.
The full frame at 100mm
At 100mm, the centre of the image at f/4 is very sharp. It remains excellent throughout f/5.6 and f/8 before softening off again slightly at f/11. It is softer again at f/16, and visibly softer again at f/22 - but only if you are examining closely at 100%. Overall the impression of sharpness is very good. At the edge of the image, sharpness is rendered best between f/8 and f/11.
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