Panasonic Lumix DMC-LX7 Operating Instructions Manual page 63

Application (Record)
Taking pictures by setting the aperture value and shutter speed [Manual Exposure] Mode
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Manual exposure assist (estimate)
Shows pictures with standard brightness.
Shows brighter pictures. For standard brightness, either use a faster shutter speed or
increase aperture value.
Shows darker pictures. For standard brightness, either use a slower shutter speed or
reduce aperture value.
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The aperture ring rotates only within the range of the printed indicators.
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When the picture is too bright or too dark or there is incorrect exposure, the numbers
for the aperture value and shutter speed are shown in red.
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LCD monitor brightness may vary from the actual still picture recorded.
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The shutter speed setting range changes depending on the [Sensitivity] setting.
[Sensitivity]
80 - 1600
2000 - 3200
4000 - 12800
Shutter speed
250 - 1/4000th
30 - 1/4000th
8 - 1/4000th
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