Which is better, ILCE-7SM2 or Panasonic GH4 Canon 5D3?

Compared with Panasonic GH4 Canon 5D3, ILCE-7SM2 is better.

According to the resolution requirement of 300dpi, A7s2 can develop 17 inches at most, and A7r2 can develop 29.5 inches at most.

The advantage of A7r2 lies in the development of large drawings, which can replace 645 under certain conditions. It is too light. In addition, when the output size allows, high pixels still have great clipping freedom.

The advantages of A7s2 are better sensitivity, more convenient shooting in dark environment, better tolerance and greater possibility of adjustment after exposure.

Tolerance seems to be very important for shooting. A7s/A7s2 has a high tolerance mode, which should be used in the professional field, saying that it needs post-toning.

Panasonic GH4 Canon 5D3 problem;

GH4 is also a video-oriented machine. Although M43 has a small bottom and poor tolerance, I think the advantage of small bottom is good depth of field control. Unless you shoot still life sketches.

Generally speaking, video doesn't need shallow depth of field, so compared with Quan Huafu, M43 doesn't need to adjust the aperture too small for deep depth of field, which will seriously affect the incoming light.