Sigma FE 85mm f/1.4 DG DN Art: Micro Contrast, Moiré, Color Aliasing with/without Pixel Shift and Distortion Correction

2020-09-11 • SEND FEEDBACK |
Related: aliasing, digital artifacts, digital sensor, distortion, distortion correction, moiré, optics, pixel shift, Sigma, Sigma FE, Sigma FE 85mm f/1.4 DG DN Art, Sigma Lenses, true-color sensor or image

The Sigma FE 85mm f/1.4 DG DN Art is an exceptionally sharp lens wide open at f/1.4, so it is a fine candidate for this study of how image quality can be degraded by a variety of factors.

How to get the best possible results?

Conclusive results are shown as to the effects on micro contrast, color aliasing and moiré from f/1.4 to f/11 from all of the following:

• Diffraction effects.
• Distortion correction for its pincushion distortion.
• Single-shot vs pixel shift vs Adobe Camera Raw Enhance Details.

Sigma 85mm f/1.4 DG DN Art: Distortion and Distortion Correction

Includes images from f/1.4 through f/11 in 6 variations: {single shot, single shot enhanced, pixel shift} with uncorrected and corrected-for-distortion versions.

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