Vaddio EVI-D80D90 Tech - Manual (Page 12)

12
Basic Functions
The wide dynamic range mode includes the following
operation modes.

WD Mode
This mode corrects blocked-up shadows and
blownout highlights in accordance with the intensity
difference.
 WD Auto ON/OFF Mode
This mode switches WD ON/OFF automatically in
accordance with the intensity difference of the
subject. Configure the sensitivity for when WD is
switched from OFF to ON with the detection
sensitivity parameter.
 Exposure Ratio Mode
This mode fixes the shutter speed of a short
exposure. Configure the shutter speed of a long
exposure by setting the ratio with regards to a short
exposure with the exposure ratio parameter.
Blocked-up shadow correction is not performed in
this mode.
 Histogram Mode
This mode uses a histogram to correct blocked-up
shadows and blown-out highlights.
 About WD Set Parameter
(Command: 8x 01 04 2D 0p 0q 0r 0s 0t 0u 00 00
FF)
p: Screen display (0: Combined image, 1: Long/short
division, 2: Long-time, 3: Short-time) Set the
screen display to a WD combination image,
long/short exposure division image, long
exposure image, or short exposure image.
q: Detection sensitivity (0: Low, 1: Mid, 2: Hi) Select
from three levels for detecting the intensity
within the image for when switching Auto WD
from OFF to ON.
r: Blocked-up shadow correction level can be
set to one of four levels. (0:L 1:M 2:H 3:S)
s: Blown-out highlight correction level can be
set to one of three levels. (0:L 1:M 2:H)
tu: Parameter to use in the exposure ratio mode.
Specify the short exposure time by setting
the magnification ratio (×1 to ×150) with
regards to a long exposure time.
Note
When the wide dynamic range mode is ON, solariza-
tion may be observed in the images of some subjects.
This phenomenon is unique to wide dynamic range
mode, and is not an indication of a camera
malfunction.
Noise Reduction
The NR (Noise Reduction) function removes noise
(both random and non-random) to provide clearer
images. By combining 2D filtering according to
brightness and image color, and 3D filtering according
to noise caused by motion and time difference, lower
noise images can be obtained for the corresponding
image brightness of a moving subject.
This function has six steps: levels 1 to 5, plus off.
Level 1 applies to subject motion mainly using 2D
filter effects. With level 5, 2D and 3D filter effects are
maximized, providing the lowest-noise images,
although moving subjects may show trails.
At each level, two filters are set according to noise and
image motion characteristics, so the available level
selections depend on the situation. The default setting
is level 3.
Image Stabilizer (EVI-D90N/P only)
Switching ON the Image Stabilizer function reduces
image blurring caused by, for example, vibration,
which allows you to obtain images without much
blurring. A correction effect of approximately 90% is
possible for a vibration frequency of around 10 Hz.
The Image Stabilizer function employs the digital
zoom system, so the angle of view and resolution are
changed, but the sensitivity is maintained.
Hold Function of Image Stabilizer
With the Image Stabilizer function, suddenly stopping
high-speed movement (pan, tilt, etc.) of the camera
produces a blur sensor counteraction that may cause
image movement. In such a case, you can use a
command setting (hold) to maintain the correction of
the Image Stabilizer function. In this case the image
stabilizer is off, but there is no change in the angle of
view.