What is the best lens?

The choice of the best lens depends on the specific needs and scene of the shooting. Here are some recommended lens types and their characteristics in different scenarios:
Wide angle lens (20mm-35mm):
20mm-24mm: Suitable for environment driven portrait and creative photography, such as travel check-in photos. But it is important to maintain an appropriate distance from the model to avoid distortion.
35mm: Known as the "golden focal length of environmental portrait", it can preserve the details of characters while also telling the background story, suitable for street sweeping culture and indoor photography.
Standard lens (50mm-55mm):
50mm: closest to the perspective of the human eye, natural and distortion free perspective, suitable for reproducing the true state of a person, whether it is a half body portrait or a full body composition, it can be competent. The large aperture version (such as 50mm f/1.8) has extremely high cost-effectiveness and is suitable for daily recording and novice practice.
55mm-85mm: Combining 50mm natural and 85mm slight blurring effect, suitable for commercial portrait photography.
Telephoto lens (85mm and above):
85mm: Suitable for taking half body portraits or close ups, it can blur the background and highlight the subject.
135mm: Long focal length suitable for shooting distant people or animals, with significant background blurring effect.