Panasonic LUMIX G VARIO 100-300mm F4.0-5.6 MEGA O.I.S. Review
Sharpness
Sharpness at 100mm
The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The LUMIX G VARIO 100-300mm F4.0-5.6 MEGA O.I.S. lens was attached to a Panasonic Lumix DMC-GH2 compact system camera, which in turn was mounted on a sturdy tripod. The self-timer was used to avoid any vibrations from pressing the shutter release. Slight tonal changes are due to slight changes in natural light during the session.
The full frame at 100mm
Centre sharpness: wide open at 100mm, this superzoom lens is sharper than it has any right to be, and it preserves this sharpness throughout most of its f-stop range, with only the f/16 and f/22 settings being too soft for our tastes.
Edge sharpness: the extreme edges of the frame are sharp enough at f/4, and again only the f/16 and f/22 settings are too soft.
| Aperture | Centre Crop | Edge Crop |
| f/4 |
 |
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| f/5.6 |
 |
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| f/8 |
 |
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| f/11 |
 |
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| f/16 |
 |
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| f/22 |
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