Studio photographers use large lenses to capture sharp, detailed images in low light. The larger the lens, the more light it can gather, allowing for more accurate color and clarity. The increased focal length also allows photographers to capture more of the scene from a single vantage point, resulting in higher-quality images. Additionally, large lenses provide a shallow depth of field, making the background more blurry and the subject more prominent. This can be used to draw attention to the subject, creating more interesting shots. In summary, the use of large lenses by studio photographers is beneficial due to their ability to capture detailed images in low light, provide a wide angle of view, and create an aesthetically pleasing shallow depth of field.