This article comes from Seying Wuji
DxOMark released their test results on Canon EOS-1D X Mark III sensor. The overall test score of 83 points is lower than the previous generation product:
The Canon EOS-1D X Mark III sensor has a DXOMark score of 83, which makes it in our It is ranked 63rd overall in the full-frame and medium-format sensor database, and 47th in terms of full-frame. Considering the increased sensitivity of the full-frame full-pixel dual-core AF sensor equipped with the EOS R and EOS 5D Mark IV, this result is somewhat surprising.
EOS-1D X Mark III sensor has achieved relatively good results in our portrait category measurement, with 23.4 bits. At its lowest sensitivity setting, the measured maximum dynamic range is 13.4 EV, The result is good. However, the sensor did not perform well in the test of the sports category. Based on our image quality parameter calculation, its maximum value is 2445 ISO.
Although the Canon EOS-1D Mark III is the same as the previous EOS-1D model and can be expanded to ISO 50, in terms of sensors, they are no different under ISO100 settings. We measured the ISO 50 and ISO 100 settings, and both reached a relatively high ISO 136, so it is not surprising that the maximum dynamic range at 13.4EV is low. This value is comparable to the performance of the EOS-1D Mark II that is about to be delisted, but it is not the best compared to the Nikon D850 and Sony A7R IV at 14.8 EV. It is true that the Canon EOS-1D Mark III is aimed at a completely different field, but in theory, the expanded ISO 50 can be used to expand the sensitivity, which is directly comparable to the Sony a9 II.
EOS-1D Mark III’s portrait project score is the same. The maximum color depth of 23.4 bits is very good, but it still lags behind other sports cameras, such as the upcoming Nikon D5, and even its previous generation Canon EOS-1D X Mark II. Compared with the best cameras for landscape and studio shooting, its maximum is only slightly lower by 3 digits.
Even if Canon did not achieve the maximum dynamic range at ISO 50, EOS-1D Mark III performed very well at high ISO dynamic range, and the noise level was well controlled. Therefore, the 2445 ISO sports score is quite high, or at least comparable to some competitors such as the 2434 ISO Nikon D5 and the 2660 ISO Nikon D850. But most importantly, the EOS-1D Mark III lags behind the latest sports machine competitor Sony a9 II. With a score of 3434 ISO, Sony only has an advantage of about 0.6 in sensor sensitivity. Canon really cannot afford to give up any advantage to a new generation like Sony.
This is DxOMark’s conclusion:
Sports news is a fiercely competitive field, and it needs a lens, a lens that can keep up with the actions in front of you. The design of Canon EOS-1D X Mark III is based on this goal. Although we did not test its camera function, on the surface, it is a very fast SLR camera, not only has amazing speed, incredible continuous shooting speed and amazing cache, but the sensor is also equally amazing deep impression. It is true that in our sensor performance measurement, it is not the most cutting-edge, but its significance is far more than that.
Like Nikon D5 and Sony a9 II, these cameras are very targeted niche products. If you are already a Canon user and have invested a lot of money in lenses and other special system accessories, then this model does not have enough advantages in sensor power to prompt you to change brands. If you are a newbie in the market, there are many things to consider-you can’t massify, and you can’t speculate-but even so, Canon EOS-1D X Mark III is still the most worthwhile product for your hard-earned money.
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