Cattle into dogs? Dogs become cows? Please love the answer of photography, thank you!

Cattle into dogs: high-grade bull heads for zooming, such as big three yuan. Only choose cheap ones for fixed focus, such as 50mmF 1.8 for several hundred yuan.

People who play this kind of games have good economic conditions, prefer to enjoy photography and don't care much about equipment.

Change a dog into a cow: zoom with a cheap pan/tilt, and then select several classic fixed focuses, such as 85 mmf 1.4, 200 mmf2, 300 300mmF2.8 and so on.

Most people who play this kind of game are equipment parties, and it is easy to go bankrupt.

Niu Chengniu must be selling equipment.