Sony RX1 vs Canon 5D Mk III with Sigma 35mm f/1.4 sharpness comparison at the Photography Blog

Can't really understand the narrow focus or the scope of this comparison, but it is an interesting one, not many people get to have their hands on both these lenses at once :)

"The sharpness tests for this review were carried out using a real-world subject rather than a test chart. Both the Sony RX1 and the Canon EOS 5D Mk III DSLR / Sigma 35mm f/1.4 lens were mounted on a sturdy tripod. The camera's self-timer mode was activated to avoid camera-shake. Tonal and colour variances across the crops are due to changes in natural light during the session. Centre sharpness is very good from f/2.8 onwards on both the Sony

Cyber-shot DSC-RX1 and the Canon EOS 5D Mk III / Sigma 35mm f/1.4, remaining high until the respective minimum apertures of f/22 and f/16, where is a slight drop in sharpness due to diffraction."

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