Datavideo BC-100, Инструкция по эксплуатации

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will average the exposure value of the whole picture. However, it will give extra-weighted
calculation for the subject on the central location. So, if the subject of the picture is not
located at the center of the picture (occupy about 30% of the space of the picture), it is not
recommended to use this Center-Weighted Metering.
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The Scenarios that is suitable for using the Center-Weighted Metering
A: The subject of the picture is located at the center of the picture.
B: The subject of the picture is back-lighted or is surrounded by glare.
Please follow following steps for using the Center-Weighted Metering.
Step 1. Please press the Matrix Metering option from the main interface of the App.
Step 2. The setting interface which is shown as following diagram will provide four exposure
modes including Matrix Metering, Center-Weighted Metering, Exposure Lock and Manual
Exposure.
Step 3. Please press the Center-Weighted Metering button to finish the setting.
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Exposure Lock: After the Exposure Lock button is pressed, the BC-100 will stop light metering
and the light metering value will be kept at the value before the camera is moved. At this
time, no matter how the BC-100 camera is moved, the light metering value will remain
unchanged.
Note: After the Exposure Lock button is pressed, the Gain Limit, Shutter Limit and Exposure
Compensation value can not be adjusted.
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The Scenarios that is suitable for using the Exposure Lock
If the contrast between the subject and the background is high (For example: taking pictures for
back-lighted subject or the subject that is beside the window), users can do the light metering at
the point that the subject is with proper brightness. After that, users can lock the Exposure value
before taking pictures. If users want to reduce the brightness of the subject, users can do the light