Which type of shutter is located in the camera body, making the lenses less expensive to manufacture?

• A. Leaf shutter
• B. Focal plane shutter
• C. Electronic shutter
• D. Global shutter

Answer: (B)

The idea being tested is where a shutter is located and how that affects lens design and cost. A focal plane shutter is housed in the camera body, just behind the lens mount, and it controls exposure by blades that open and close near the sensor. Because the shutter isn’t built into each lens, lenses can be manufactured without their own shutter mechanism, making them simpler and cheaper to produce.

In contrast, a leaf shutter sits inside the lens itself. While it offers advantages like precise flash synchronization at various speeds, it adds mechanical complexity and cost to every lens. The other two options describe shutter concepts that aren’t the traditional mechanical shutter located in the camera body for exposure control.