How does sensor size influence image quality?

Larger sensors capture more light, which significantly enhances image quality. This is because a larger sensor has a greater surface area to collect incoming light, leading to improved sensitivity and performance in various lighting conditions. With more light captured, larger sensors can produce images with better dynamic range, reduced noise, and finer detail, especially in low-light environments.

In contrast, smaller sensors may struggle with light collection, leading to increased noise and lower overall image quality, particularly when the ISO settings are raised. This fundamental relationship between sensor size and light-gathering capability is critical in photography, as it directly affects the depth of field and the ability to create a pleasant bokeh effect, in addition to overall clarity and color accuracy. Therefore, larger sensors are generally preferred for higher quality imaging in professional photography.