character: Dr. Smith
topic: Applications of Lenses in Photography
grade: 11
subject: Physics
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character: Mr. Johnson
topic: Understanding Focal Length in Camera Lenses
grade: 11
subject: Physics
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character: Ms. Lee
topic: The Role of Aperture in Exposure and Depth of Field
grade: 11
subject: Physics
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character: Mr. Brown
topic: Optics and Lens Design in Modern Photography
grade: 11
subject: Physics
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