What does the photographic light FX mean?

Fx lens is a lens that can be applied to Quan Huafu SLR.

Compared with ordinary camera lens, FX lens has better imaging quality and more stable optical structure.

Fx is the format standard of the frame, which refers to the imaging area of the camera photosensitive chip. FX format is a photosensitive chip manufactured according to the size of 135 film negative: 1.

FX digital SLR camera is a full-frame camera with FX logo on the lens, which is a Quan Huafu lens.