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EXCERPT page containing first few paragraphs. 2023-12-05 03:10:36

Zeiss Touit 32mm f/1.8 Distagon

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

The Zeiss Touit 32mm f/1.8 Distagon has distortion that is generally in excess of that seen with a 50mm lens for a full-frame DSLR, but it is of an easily-correctable barrel type.

An Adobe Camera Raw lens profile was not available at the time this test was done, however manual distortion correction is available. With Fuji X cameras, distortion is always performed, even in raw format (at least at the time this was written).

The camera was shot in RAW + JPEG Fine mode, so there was one exposure for this pair, not two separate exposures.

Contrast and white balance

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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Variants uncorrected, corrected, jpeg available in full article

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