Compared to the 36-Mpix Nikon D800 models, the results are very similar indeed, implying the new Sony A7R uses the same (Sony made) sensor. The differences in individual metrics are close enough to be within our tolerances for testing, however, it maybe also be down to the differences in the filters or the imaging chain in more general terms. In real world use, the variance in low-light scores is negligible. As for assessing image sharpness, we’ll be adding lens tests with the Sony in the near future.
Although the Sony is a tiny mirrorless camera, it will be competing directly against traditional pentaprism-based DSLRs like the Canon EOS 5D Mk III.
As the Sony sensor performs much like that found in the D800, it’s perhaps no surprise to see the Canon EOS 5D MK III lagging a little, particularly in dynamic range. But it’s fair to say the Canon is a very good performer (and although not shown here it has outstanding resolving power), even if in the lab it doesn’t do quite so well in the tests against the Sony sensor.
Against the firm’s rightly popular and hugely inspirational 24-Mpix full-frame Cyber-shot DSC-RX1R, the new model improves on each of the metrics by a small but meaningful margin.
It’s made all the more relevant when you consider the increase in pixel count. However, while we’re optimistic, it remains to be seen whether that translates into improved resolution and image sharpness, especially as Sony has yet to announce a similar high-grade Zeiss 35 mm f2.0 for the new model.