Sigma 19 mm f/2.8 EX DN
6. Distortion
The constructors of the Sigma optics used quite different, and a rather classic approach which suits us much better. In the case of photos taken with the Olympus E-PL1 the distortion is exactly the same for RAW and JPEG files, amounting to –1.44% which is a moderate value, definitely lower than in the case of its competitors.
When we pass to a bigger sensor of the Sony NEX-7 the distortion increases but fortunately not much. In this case it remains the same for JPEG and RAW files, getting to –1.73%.
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| Olympus E-PL1, JPEG | |||
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| Olympus E-PL1, RAW | |||
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| Sony NEX-7, JPEG | |||
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| Sony NEX-7, RAW | |||
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