What is the difference between Canon 5d3 original lens and Bai Xiaobai?

there is no "original lens" in the SLR body, but only "standard" lens. For example, the 5D3 lens comes standard with a 24-15/4L red ring lens. There is no "Bai Xiaobai" lens as you said. Canon's famous "Xiaobai" refers to the 7-2/2.8L lens, which belongs to the red circle lens with a white body. It belongs to telephoto zoom lens, while the camera lens 24-15/4L belongs to standard zoom lens. The scope of application is different. The former is suitable for telephoto and close-up, while the latter is suitable for taking photos of daily life and travel. Canon red circle L lenses are all high-end lenses, with excellent workmanship, exquisite materials, anti-splash performance and high price. Most of Canon's advanced telephoto lenses have obvious white lenses, which are very eye-catching. There are many kinds of "Little White" such as Guo Xuwei (F/4 aperture), Little White (F/2.8 aperture), Love Little White (anti-shake little white) and Love Little White Rabbit (anti-shake little white II).