{
    "35mm": [
        [
            "Wide-angle lens",
            "Panoramic view",
            "Wide angle"
        ]
    ],
    "50mm": [
        [
            "Standard lens",
            "Nifty fifty",
            "Versatile focal length",
            "Natural field of view"
        ]
    ],
    "80mm": [
        [
            "Portrait lens",
            "Medium telephoto",
            "Flattering focal length"
        ]
    ],
    "800mm lens": [
        [
            "Super telephoto lens",
            "Extreme reach",
            "Distant subjects"
        ]
    ],
    "circular polarizer": [
        [
            "Polarizing filter",
            "Reduced reflections",
            "Enhanced colors",
            "Increased contrast",
            "Blue sky enhancement"
        ]
    ],
    "depth of field 100mm": [
        [
            "Shallow depth of field",
            "Narrow depth of field",
            "Wide aperture",
            "Blurry background",
            "Isolated subject"
        ]
    ],
    "depth of field 270mm": [
        [
            "Deep depth of field",
            "Extended depth of field",
            "Small aperture",
            "Sharp from front to back"
        ]
    ],
    "f/1.8": [
        [
            "Wide aperture",
            "Shallow depth of field",
            "Low-light photography",
            "Subject isolation",
            "Creative bokeh"
        ]
    ],
    "f/2.8": [
        [
            "Fast lens",
            "Wide aperture",
            "Low-light photography",
            "Shallow depth of field",
            "Zoom lens"
        ]
    ],
    "f/5": [
        [
            "Moderate aperture",
            "Balanced depth of field",
            "Versatile for different scenes",
            "Sharpness throughout"
        ]
    ],
    "f/8": [
        [
            "Optimal aperture",
            "Sharpness across the frame",
            "Good depth of field"
        ]
    ],
    "f/14": [
        [
            "Narrow aperture",
            "Wide depth of field",
            "Range depth of field"
        ]
    ],
    "fish-eye lens": [
        [
            "Ultra-wide-angle lens",
            "Extreme perspective distortion",
            "Unique visual effect",
            "360-degree photography",
            "Creative compositions"
        ]
    ],
    "l usm": [
        [
            "Ultrasonic motor",
            "Fast and silent autofocus",
            "High-performance lens",
            "Precise focusing",
            "Professional-grade optics"
        ]
    ],
    "low shutter": [
        [
            "Slow shutter speed",
            "Long exposure",
            "Motion blur",
            "Light trails",
            "Creative effects"
        ]
    ],
    "macro lens": [
        [
            "Close-up lens",
            "High magnification",
            "Small details"
        ]
    ],
    "selective focus": [
        [
            "Bokeh effect",
            "Subject separation",
            "Background blur",
            "Creatively controlling focus",
            "Artistic photography"
        ]
    ],
    "telephoto lens": [
        [
            "Long focal length lens",
            "Magnification",
            "Compressed perspective"
        ]
    ],
    "zoom lens": [
        [
            "Telephoto lens",
            "Wide-angle lens",
            "Prime lens",
            "Variable focal length lens",
            "Optical zoom"
        ]
    ]
}