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Zeiss Touit 12mm f/2.8 Distagon

Distortion Correction in JPEG vs RAW (Sony NEX-7)

The Zeiss Touit 12mm f/2.8 Distagon has some distortion typical of most ultra wide angle designs. When shooting raw format on the Sony NEX-7, this distortion is not corrected even if the setting is enabled; only the JPEG is corrected.

An Adobe Camera Raw lens profile was not available at the time this test was done, hence we compare the NEX-7 distortion correction in JPEG versus the uncorrected raw output. With Fuji X cameras, distortion is always performed, even in raw (at least at the time this was written).

Contrast

The camera-generated JPEG had a different tonal curve than that delivered from RAW by Adobe Camera Raw; some adjustments were made to make the raw-derived image look more similar to the JPEG. The exposure was also compromised (ETTR not used), so that the JPEG would come out without being too bright.

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Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.

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