Which statement best describes optical zoom?

Which statement best describes optical zoom?

• A. In optical zoom, lenses on the camera are used to get closer to the object
• B. In optical zoom, the image is enlarged by digital interpolation
• C. In optical zoom, the camera increases pixel count
• D. In optical zoom, the subject must be physically moved closer

Answer: (A)

Optical zoom works by changing the focal length with the camera’s zoom lens, magnifying the scene through the optics itself. This means you get a closer view by moving lens elements inside the barrel, not by adding pixels or enlarging them digitally. That’s why describing optical zoom as lenses on the camera being used to get closer to the object fits best—the magnification comes from the lens changing its optics. In contrast, digital zoom crops and interpolates the image to appear closer, which reduces quality. Simply increasing pixel count relates to resolution, not zoom. And while you could move closer to the subject, optical zoom doesn’t rely on changing your distance—the magnification comes from the lens changing its focal length.

Optical zoom works by changing the focal length with the camera’s zoom lens, magnifying the scene through the optics itself. This means you get a closer view by moving lens elements inside the barrel, not by adding pixels or enlarging them digitally. That’s why describing optical zoom as lenses on the camera being used to get closer to the object fits best—the magnification comes from the lens changing its optics. In contrast, digital zoom crops and interpolates the image to appear closer, which reduces quality. Simply increasing pixel count relates to resolution, not zoom. And while you could move closer to the subject, optical zoom doesn’t rely on changing your distance—the magnification comes from the lens changing its focal length.