Lens Shading Adj - Samsung ST76 Service Manual

7-2 Lens shading ADJ

■ Make adjustments to the Lens Shading to the surrounding brightness of each camera.
■ Because the surrounding brightness is lower compared to the centre for each set, separately adjust each set
so that the surrounding brightness is higher.
<Adjustment method>
1. Prepare the AE TESTER.
* Luminance specification of the Light box is
* The Light box is located at 10mm ± 1mm with the body tube open.
* The colour temperature specification of the Light box is 5500K.
2. Save the applicable adjustment file to the memory card.
3. After inserting the memory card containing the program file to the camera, set the camera to the AE TESTER.
Light source box
4. Adjust the LV value of the AE METER to 12.
5. When you turn on the power of the camera, the adjustment will start automatically.
Adjust the Lens Shading with large lense, Zoom 0 condition.
q
Refer to the EEPROM WRITE information and write the adjustment result to EEPROM.
w
Refer to the CARD WRITE INFORMATION to write the adjustment result to the data file.
e
Set the lower and upper specification.
r
6. When the adjustment is completed, the camera will automatically be turned off.
<Adjustment result>
On the memory card, open and check if a CSV file was generated from the adjustment..
<Restriction>
If the capacity of CSV file is more than 30KB, clear all of the previous data and then, record
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LV 12.
Fig. 7-1
Adjustment
Light source box
Camera
7-3