39
Variable Scan Mapping
(VSM)
You can set the scan range for the imaging device
according to the lens attached.
●
Perform the setting using a recorded image of a
white object with uniform brightness.
Caution :
●
This setting is effective for vignette effect,
however it may not be fully effective against
distortion and reduction in ambient luminance.
Perform the setting while taking into
consideration the characteristic of the lens
attached.
●
When a Micro Four Thirds lens is attached
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setting for Micro Four Thirds (“80% (MFT)”),
the Micro Four Thirds lens may not perform
optimally.
Setting VSM
1 Select [Main Menu]
[System] [Record
Set] [VSM] and press the Set button.
The scan range selection screen is displayed.
* Use a screen with vignette effect to make the
setting operation simple.
2 Select the scan range using the
▲
/
▼
buttons.
●
The scan range when the size of the imaging
device is set to “100% (Super35)” is displayed
as percentage.
Square frame : Scan range
Round dotted frame : The image frame of the
lens equivalent to the
scan range (square
frame).
●
Set in such a way that the vignette effect
does not spread into the round dotted frame.
3 Press the [USER3] button to check the
brightness.
●
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displayed in full screen size.
●
You can check the vignette effect through the
brightness displayed at the four corners and
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screen.
It is preferable to get 100 % brightness at the
four corners with respect to the 100 %
brightness at the center. However, depending
on the characteristic of the lens attached,
besides the vignette effect you may also not
get 100 % brightness at the four corners.
Memo :
●
The values for the brightness at the four
corners are estimates. We recommend using
a measuring instrument to obtain accurate
measurements.
Summary of Contents for GW-SP100E
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