大失所望，比尼康D750，佳能5D4要差
https://www.dpreview.com/articles/3416153698/canon-eos-6d-mark-ii-dynamic-range

和6D比也要差

不明白，动态范围真的就这么重要吗？

还是重要的，在特定情况下增加噪点

落后于佳能80D

Real world impact

If you shoot JPEG, you\\\'ll never notice any of this, since the differences occur beyond the ~8.3EV or so that tend to be incorporated into a typical image. Similarly, at higher ISO settings, amplification overcomes the electronic noise, so you see the camera begin to out-perform the 80D and then close the gap with the D750, just as Bill\\\'s chart suggests.

However, it means if you\\\'re processing from Raw at low ISOs, you have much less flexibility in terms of what you can do with the file than we\\\'d expect from a modern camera. Almost as soon as you start to push the image or pull detail out of the shadows, you risk hitting the camera\\\'s electronic noise floor and hence you won\\\'t see the advantage over the smaller sensor 80D that you might reasonably expect.

Adding to the problem is Canon\\\'s metering system, which tends to underexpose images when there\\\'s strong back-light. If the metering sensor were high resolution or advanced enough to detect faces, one might expect proper exposures for human subjects even in backlit shots; however, we\\\'ve found the low resolution metering sensor in the 6D Mark II to be often incapable of detecting - and properly exposing for - faces. That means that backlit shots will be underexposed (unless you intervene), and you\\\'ll have limited ability to recover these underexposed shots because of the sensor\\\'s poor performance.

实际拍照的影响

如果您拍摄用JPEG，这一点是不重要的，因为差异发生在〜8.3EV之外，因此往往被纳入到典型的图像中。类似地，在更高的ISO设置下，放大克服了电子噪声，所以您看到相机开始超出80D，然后与D750缩小差距，就像Bill的图表所示。

但是，这意味着如果您从Raw格式处理低ISO，那么与现在流行的相机相比，您对文件的处理能力要低得多。几乎一旦您开始推送图像或将细节从阴影中拉出，您就有可能碰到相机的电子噪声，因此您不会看到可能合理预期的较小传感器80D的优势。

还有的问题的是佳能的测光系统，当有强烈的背光灯时，它会倾向于曝光不足图像。如果测光传感器具有高分辨率或足够高级以检测面部，则即使在背光照射中也可能会对人进行适当的曝光; 然而，我们发现6D Mark II中的低分辨率测光传感器通常无法检测并正确曝光。这意味着背光照射将会曝光不足（除非您进行干预），并且由于传感器的性能不佳，您将恢复这些曝光不足的镜头的能力有限。
这说明对于曝光不足的照片，拉回来的效果不佳

刚刚我在群里看到有人说这个网站是假的
黑佳能
收了其他牌子的钱

有点胡说吧，这个网站是比较著名的影像网站，不要一看见这样的新闻就开始说什么，相信科学，你看看这个网站其他的佳能相机不也是都有测试吗？？？？

曝光都不能保证准确的靠往回拉的有什么留的必要。扔了吧。而且这样还玩摄影？