The problem of weak focus of 5D2 (invincible rabbit)

Indeed, EOS 5D MarkII, as Canon's more intimate Quan Huafu model, can be said to be very cost-effective, but the configuration of 9 autofocus points and 6 auxiliary autofocus points is indeed somewhat outdated today-because there is no focus, on such a Quan Huafu SLR, it seems that the focus is very concentrated in the center of the picture. When shooting sports and wildlife, you will feel that the focus is not enough and it is too close to the center, which is not conducive to composition (but EOS 5D MarkII is the most

Let's talk about focusing accuracy first. Needless to say, the accuracy of the center focus, only the edge focus: There are indeed some people who report that the edge focus accuracy of EOS 5D MarkII is low, especially when I touched EOS 5D MarkII in continuous shooting at "high speed" (3.9 frames per second of "high speed" continuous shooting). In low light, the performance of the edge to focus is really unsatisfactory.

Of course, compared with EOS 500D, the center alignment of EOS 5D MarkII is slightly better, and the edge alignment accuracy is basically the same as EOS 500D.

(In contrast, Nikon D700 has an autofocus point as high as 5 1 and a continuous shooting of 5 frames per second, but the pixel is only120,000, which makes it difficult to choose between the two-these two "brothers", needless to say ...)

Back-focus photography is exactly the same as back-focus photography, but it is not limited to what you said. If a person runs from left to right, I can shoot from the side, move the lens from left to right, and follow him at the shutter speed of115; You can also shoot directly at him, zoom from the telephoto end to the wide-angle end with a zoom lens, and create central blur with a slow shutter speed: in a word, as long as the photo is full of directional flow blur except the part that the photographer wants to show, it can be called focus-chasing photography.