How is the focusing speed of the 85mm f1.2 on the 5D3? Is there anyone who has used it? Can you comment? It is said that the focusing speed of the 85 1.2 is related to the body of the 85mm f1.2.

The focusing speed of any lens is related to the camera body. This is for sure, because different grades of camera bodies have different processor speeds and different focusing performance, which directly affects the focusing accuracy and focusing speed. Fast or slow.

To be honest, I haven’t used the 1D series of machines many times. I can’t really appreciate them even if I occasionally use them with friends. I only have the 60D and 5D3 that I have used, and my buddy’s D700. I can often use it, and I tried the D800 more frequently when I bought the 5D3.

In terms of focusing speed, regardless of the 1D series, the 5D3 is the top product in terms of focusing performance. If you want to pursue focusing speed and accuracy, then the 5D3 is definitely the limit. There cannot be any other product that is not. The focusing speed of the 1D series machines is comparable to that of the 5D3, which is impossible even for Nikon machines of the same level!

The focusing speed of 5D3 is absolutely leading and very resolute! I don’t do sports photography and I don’t need to capture pictures all the time, but when taking portraits, this speed is enough to make me intoxicated. It is absolutely perfect for capturing the model’s expressions and movements at a certain moment.

But since you choose a Canon machine, you have to know Canon’s biggest flaw:

There is no focus fill light, which means that if the light is very dark, the 5D3 cannot focus. It's not a matter of speed, it's just that I can't focus at all! You must have an assistant use a small LED flashlight to help you illuminate the focus position.

Of course, in most cases, you must take photos in a well-lit place! Haha

Nikon has a focus fill light, which may be useful in some KTVs or more "emotional" places, and seems more user-friendly, haha

First of all, the performance of the lens is also Different, because some focus rings are USM, some are stepper motors, and some are nothing at all. The 85mm F1.2 must be the leader in lens focusing structure. If you can match it with the 5D3, there will be no doubt about it. An absolute advantage!

So it is foreseeable that the focusing speed of this combination will be "perfect"!