![]() ![]() ![]() Mounted on the Sony NEX-7, the lens follows the same pattern of sharpness - very good at ƒ/2.8, excellent at ƒ/4 to ƒ/8, and softer at ƒ/16 and ƒ/22. Fully stopped-down at ƒ/22, there is some impact on sharpness, but it's still very good. Diffraction limiting sets in at ƒ/8, but you won't notice any impact on sharpness until ƒ/16, where it is still very sharp across the frame. Stopping down to ƒ/5.6 technically provides more sharpness, but you'd only notice it looking very closely at a test chart. There's just a hint of corner softness at ƒ/2.8, but even this is all but eliminated by just stopping down to ƒ/4. Mounted on the Panasonic GX-1 m4/3 camera, the lens produces excellently sharp images even wide open at ƒ/2.8. The lens provides sharp images, more so on the micro four-thirds camera than on the Sony NEX, owing to the fact that the micro four-thirds sensor does not "see" the corners of the lens. The lens ships with a round lens hood, takes 46mm filters, and is available now for around $200. ![]()
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