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How does the 24 megapixel Nikon D3x stack up on the mosaic test against the 37.5 megapixels of the Leica S2, where depth of field is not a factor?
Be sure to also see the next page, which performs this same comparison using deconvolution sharpening.
ISO and focus
The base ISO of each camera was used here, ISO 160 for the Leica S2, and ISO 100 for the D3x.
The Leica S2 results on this page used the manual focus series (the best result) as discussed on the auto-vs-manual focus page. The focus is apparently perfect with the manual focus series, showing sensor-limited resolution complete with the expected moiré and aliasing effects inherent to that kind of performance.
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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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