FOV_ARROWS = { \
    "120um[0.0]": [84.0],   \
    "100um[0.0]": [82.0],   \
    "75um[0.0]": [77.0],   \
    "50um[0.0]": [72.0],   \
    "40um[0.0]": [66.0],   \
    "30um[0.0]": [61.0],   \
    "25um[0.0]": [50.0],   \
    "20um[0.0]": [45.0],   \
    "15um[0.0]": [32.0],   \
    "10um[0.0]": [5.0],   \
    "7.5um[0.0]": [15.0],   \
    "5m[0.0]": [10.0],   \
    "2.5m[0.0]": [5.0],   \
    "1.25m[0.0]": [0.0],   \
    "new_entry": [0.0]   \
}