Hello. What are the advantages and disadvantages of Canon G3X and Sony RX 10 III? Which performance is stronger and better? Thank you.

Hello. RX 10M3 is stronger and better.

1. There are four unified standards to judge the quality of digital cameras, namely sensor quality, lens quality, image processing technology and control level. The first three standards are related to the image quality, while the latter is related to the shooting success rate. These four standards are applicable to the evaluation of all digital cameras (including SLR, micro-camera, etc.). ).

2. The sensor is an important core component of digital imaging. Although both G3X and RX 10M3 use 1 inch sensor, the area is the same. But the quality is different. At present, there are three versions of 1 inch sensor. The first one is the 1 inch sensor developed by Aptina Company, which is used in Nikon's micro-single J/V series, and the latest one is also used in Nikon's newly released DL series portable computers, such as Nikon's 1 inch telephoto machine DL24-500F2.8-5.6. The second is the 1 inch sensor developed by Panasonic, which was first used on the world's strongest camera phone CM 1 and then used on Panasonic FZ 1000; The third is the 1 inch sensor developed by Sony, which is used on black cards. Judging from the samples taken by DP Review Laboratory, the most authoritative third-party camera comprehensive performance evaluation agency in the world, J/V5 series with Aptina sensor has the best image quality (of course, there are lens factors), followed by Sony's. Canon G3X uses the same 1 inch sensor as G7X, G5X and G9X. There are different opinions about the source circle of this sensor. Some people say that it is Canon's own, and some people say that Canon bought Sony (but it is definitely not Aptina and Panasonic, because the finished sensor Aptina is only sold to Nikon and GM, and Panasonic is only sold to Dayu, and the big seller is only Sony. Leica, Nikon, Pentax and Oba all buy Sony sensors. Canon officials are secretive about this and never say who developed this sensor. Personally, I prefer to think that Canon will buy Sony, but there is no strict basis. No matter which company develops the sensor, what matters is the quality of the sensor itself. According to the evaluation data released by DxOMark Laboratory, the most authoritative third-party sensor evaluation organization in the world, Sony RX 100M4(DXO's evaluation of RX 10M3 has not been released yet, but the sensor used by RX 10M3 is the same as that used by Xiaoheika 4, which can be referenced) has a total score of 70, of which the color depth is 22.9bits, and the dynamic range is available. The total score of Canon G3X is 63, among which the sensor technical indicators of color depth 2 1.4, dynamic 12.3 and high sensitivity 52 1 are all behind. Although this is not rigorous, G3X is worse than RX 102 (the total score of RX 102 is 69, including color depth of 22.9, dynamic 12.6 and high sensitivity of 474), except for high sensitivity. Because the sensor of black card 4 is better than that of black card 3, and its natural technical index is better, so should RX 10M3. Personally, I think the sensor of RX 10M3 is more powerful than G3X. Although there are subjective elements, I believe there will be scientific basis to support it after a period of time, not to mention the 4K video that RX 10M3 does not have.

3, the lens. RX 10M3 is equipped with a T* coated Zeiss lens equivalent to 24-600mm F2.4-4, including 8 ed lenses, including 2 aspherical ed lenses and 1 super ED lens. Canon G3X is equipped with a Canon lens equivalent to 24-600mm f/2.8-5.6, including 2 UDs, 1 high UD lenses and 4 aspheric lenses. From the lens point of view, the lens of RXM3 is better. First, Zeiss brand (some people think that brand is not equal to quality, but I personally hold the opposite view. The cultivation of a brand depends on long-term product quality and user reputation. If a brand wants to be deeply rooted in the hearts of the people, it will never last long just by naming it. Zeiss, Leica and Schneider, the world's leading troika in the lens industry, are all Germans, and the rigor of Germans is world-famous); Second, the parameter, the index of F2.4-4 is of course higher than F2.8-5.6, which is common sense, needless to say; Third, materials. RX 10M3 has 8 ed lenses, while G3X has only 3 UDs (UD is developed by Canon itself, with the same performance as ED, but with a different name). ED is the abbreviation of Extra-low Dispersion in English, which means ultra-low dispersion lens, which can effectively solve the dispersion and chromatic aberration problems caused by lens. The more ED lenses, the better the image quality and the more expensive the lens is.

4. Image processor. Canon's image processing technology is higher than Sony's. As an electronic giant, Sony's optical background and digital processing ability for still images are not as good as those of Canon, Nikon, Pentax, Oba and other optical giants (TV images cannot be compared because of different principles), and it is basically the same as Panasonic, which is also an electronic giant. In practice, the color of Canon image is more accurate and the reproduction is more realistic, which is a long way from Sony. However, Canon's image processor technology is powerful, but it is often handled in stages. The more advanced the equipment, the higher the technical level of the image processor. The image processing of G3X is Powershot (a kind of Canon portable camera) level, not EOS (SLR) level. It is said that Canon's newly released G7XM2 may decentralize EOS-level image processing technology, which is another topic. Sony, on the other hand, has no layered image processor technology because of its general image processing technology (of course, there are some local leading places, such as multi-frame noise reduction technology). In Tian Ji, the first horse doesn't necessarily lose to Sanma. So I think the image processor of RX 10M3 is equal to G3X, and all good cameras have RAW format. Now the later image software is extremely powerful, and the difference between image processors is almost negligible.

5. control. This kind of telephoto camera is difficult to control. It can only be said that tourism and general shooting are enough and basically the same. However, RX 10M3 has a native electronic viewfinder with 2.35 million pixels, while G3X has no electronic viewfinder (telephoto machine has no electronic eyes, so its stability is obviously different). Of course, G3X can be equipped with a viewfinder, and the external EVF-DC 1 viewfinder with 2.36 million pixels has the same effect, but the overall harmony is worse.

6. The low price of G3X and the high price of RXM3 are outstanding advantages of G3x. Of course, strictly speaking, cost performance can only be discussed on the basis of goods of the same quality. The picture quality of RXM3 is higher than that of G3X, but the high picture quality is not necessarily worth the high price. How to treat the cost performance under such a premise, the conclusion is different;

7. Some of my statements are simple and not rigorous. For example, I said that the post-software can replace the image processing function of the image processor, but the image data (RAW compression rate) retained by the image processor or the synthesis speed of the camera image cannot be replaced by the post-software I only pick the main points, and I can't treat them according to the rigor of the paper. Please forgive me.

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