Hello! 1, recommended Canon EF 70-200/4L USM lens (Guo Xuwei) Price: 5450 Guoyuan Xu Wei is a medium-long focal length zoom lens often selected by ordinary Canon SLR users. Although there is no attractive F2.8 aperture compared with Xiaobai, it has lost a lot of weight and brought excellent portability. The weight is very suitable for going out to sweep the street. Many professional photographers also choose a smaller Guo Xuwei lens when they need to move frequently. Canon EF 70-200/4L USM is a high-performance L series telephoto zoom lens. Because the designed maximum aperture is f/4, it is smaller and lighter. Built-in focusing system and ring ultrasonic motor ensure fast and quiet focusing. Because the front lens group does not rotate when focusing, the lens can be easily connected with the polarizing filter and used. Tripod bracket can also be used for EF300mm f/4L USM. 2. If funds permit, you can also choose Canon Ef70-200/4 Li imprice:8400 yuan. Canon Ef70-200/4 ISU mal, also known as "Love Guo Xuwei", is an upgraded version of Guo Xuwei Anti-shake. The problem of image blurring caused by insufficient Guo Xuwei aperture and slow shutter speed is solved, and the practicability is greatly improved. It depends on whether consumers can accept the price difference of an 85 1.8 lens. Compact and lightweight f/4 telephoto zoom L lens, using fluorite and ultra-low dispersion (UD) lens, brings excellent imaging quality. IS optical image stabilization is equivalent to improving the shutter speed of the highest fourth gear. Optimized lens coating and lens position can effectively suppress ghost and glare, excellent dustproof and waterproof performance, circular aperture brings excellent defocusing imaging, annular ultrasonic motor makes focusing quiet and fast, full-time manual focusing, and all optical systems adopt lead-free glass.