Which setting primarily affects depth of field and the amount of light entering the camera?

Which setting primarily affects depth of field and the amount of light entering the camera?

• A. Shutter Speed
• B. Aperture
• C. ISO
• D. White Balance

Answer: (B)

Aperture is the setting that primarily affects both depth of field and the amount of light entering the camera. The size of the lens opening controls how much light hits the sensor and how much of the scene remains sharp. A wide aperture (low f-number) lets in more light and creates a shallow depth of field, making the background blurry while keeping the subject in focus. A narrow aperture (high f-number) reduces light and increases depth of field, bringing more of the scene into sharp focus but requiring more light from other sources or a longer exposure. Shutter speed changes how long the sensor is exposed, influencing motion blur and overall exposure but not how much of the scene is in focus. ISO adjusts sensor sensitivity and noise, affecting exposure but not depth of field. White balance tweaks color temperature, which doesn’t impact exposure or depth of field.

Aperture is the setting that primarily affects both depth of field and the amount of light entering the camera. The size of the lens opening controls how much light hits the sensor and how much of the scene remains sharp. A wide aperture (low f-number) lets in more light and creates a shallow depth of field, making the background blurry while keeping the subject in focus. A narrow aperture (high f-number) reduces light and increases depth of field, bringing more of the scene into sharp focus but requiring more light from other sources or a longer exposure. Shutter speed changes how long the sensor is exposed, influencing motion blur and overall exposure but not how much of the scene is in focus. ISO adjusts sensor sensitivity and noise, affecting exposure but not depth of field. White balance tweaks color temperature, which doesn’t impact exposure or depth of field.