EXCERPT page containing first few paragraphs. 2021-01-22 17:14:26
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Like most medium format digital backs, the Leica S2 does not have an anti-aliasing (blur) filter.
Normally, lack of an anti-aliasing filter has wonderful benefits in terms of outstanding per-pixel sharpness. The downside is that it can lead to unpleasant patterns of color or detail interacting with the sensor resolution: moiré.
Software can reduce or eliminate moiré, but sometimes moiré affects only a small portion of the image, and extra processing steps or settings are never a plus. However, moiré is a fact of life with cameras lacking an anti-aliasing filter, so it’s an even field out there.
Stopping down eliminates moiré
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These systems are hugely expensive, so make the right choice for your own needs (full frame vs medium format).
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