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Canon 5DS R

Moiré and Diffraction Across Apertures: Canon 5DS R vs 5DS (Window Screen)

The Canon 5DS R has no anti-aliasing filter, which has two effects: (a) an increased propensity to moiré and color aliasing, and (b) superior micro contrast (visible and commented upon in some of the comparisons).

Moiré can be provoked by many types of subject matter. It can occur when the frequency of fine detail approaches sensor resolution, but it can also occur when the detail has a periodic (repetitive) nature. The latter type can be seen even by the human eye (hold two screens together and slide them slightly).

Here an example is shown of the latter type in which repetitive subject matter generates color moiré (bands of alternating color). However, the details are also not far off from sensor resolution and both causes are at play.

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