Street photography thrives on timing, intuition, and perspective – but the lens you choose has a decisive impact on how you perceive and portray the world. A good understanding of how different focal lengths affect your image helps you capture authentic and impressive scenes of everyday life.
Many street photographers opt for prime lenses, especially in the range of 35mm or 50mm. These focal lengths roughly correspond to the natural field of view of the human eye, providing a realistic, immersive feeling. A large aperture, such as f/1.8 or larger, is also advantageous – it not only allows you to shoot in changing lighting conditions but also creates a shallow depth of field that separates your subject from the background.
Discreetness is often the key in street photography. Compact, lightweight lenses make your equipment more manageable and less intrusive. Autofocus also plays a big role – it should be fast and precise so you don't miss spontaneous moments.
Wide-angle lenses create closeness and depth, drawing the viewer directly into the scene. However, you should watch out for distortions, especially when photographing people from a short distance. Slightly longer focal lengths, like 85mm, are ideal for natural portraits from a greater distance without disturbing the situation.

In the end, it comes down to consciously adapting your lens to the respective street scene – whether in busy alleys, quiet corners, or when capturing fleeting expressions. With some practice, your lens will become not just a tool, but a part of your photographic perspective.