What is the difference between the actual photos of a full-frame camera and a C-frame camera?

Hello! Because the imaging circle of Quan Huafu lens is larger than that of C-frame lens, when Quan Huafu lens is used in C-frame camera, only the middle part of the imaging circle of Quan Huafu lens can be used for imaging. This is why some people will use the phrase "C frame machine can't shoot it at all" to describe it!

In fact, if it is mainly used for telephoto photography, in addition to making the equivalent focal length on the C frame longer, there is another advantage that only the central part of the lens with the highest resolution is used for imaging (the lens usually has the highest resolution in the center, and the lower it goes to the edge). Therefore, the obtained photo has the same resolution quality from the center to the edge as the photo center taken by the full-frame machine. Therefore, the use of Quan Huafu lens on the C frame machine is very useful for the advantages of telephoto, and it will also affect the defocusing of Jiao Wai, and so on! I won't say it here, after all, what you want is a popular saying!