Sony a6300 supports 4k, and the video frame rate of 1080p can reach 50p, while 5d3 and 6d can only shoot 1080p 50fps at most. Therefore, in the case of similar lens quality, Sony a6300 video is stronger.

The detailed a6300 evaluation video is for reference: /video/av4045353/

Let's talk about the lens again.

The upper figure and the lower figure are mtf curves of 24 105 and 18200 respectively. Look at the blue and black solid lines to get a general understanding of the lens quality. The closer to the top, the better the picture quality. In terms of image quality alone, 18200 is slightly better. However, considering comprehensively, 24 105 has a large amount of light, and a small zoom ratio will bring slight distortion. In addition, 24 105 also has an ultrasonic focusing motor, which has better focusing performance. Therefore, it is not necessary to use 24 105 if it is a half-width machine, and 18200 if it is a full-width machine, but it is not the best to use 24 105 (you can use 2470 2.8 if you have money).