52
Setting
Using the ND Filter
Use the ND filter in the optional accessories to measure high-luminance objects.
If the ND filter is attached, the measurement value must be compensated for the filter transmittance.
This compensation coefficient is attached to the ND filter. After setting up the instrument using the
CS-S30 software for spectroradiometers that comes standard with the instrument, an ND filter can be
selected as an accessory to obtain measurement values corrected by the correction coefficient. For
details on how to set up using the software, see the CS-S30 instruction manual.
Setting the wrong ND filter will lead to inaccurate measurement.
Moreover, do not use the ND filter with the closeup lens and illuminance adapter. as this will lead to
inaccurate measurement.
Note that an extra ND filter is built into this instrument. There are three setting options for use or non-
use of this built-in ND filter: [AUTO] for switching automatically depending on the luminance of the
object, [OFF] for constant non-use, and [ONE] / [TWO] for constant use (See p.28).
* EXT-ND : OFF, EXT-ND10 (1/10), EXT-ND100 (1/100)
* Factory default setting : EXT-ND: OFF, IN-ND: AUTO
Operating Procedure
1
6, 7
1. Press
MENU
key when the MEAS screen
is displayed.
The MENU screen appears on the LCD.
When the backlight of the LCD has been turned off via
BACKLIGHT
key on the MEAS screen, the
backlight is turned on.
SPD
CMF
SYN
[
Hz
]
ACC
cd
m
2
Lv
63.60
0 . 4015
0 . 4061
x
y
MEAS
MEMORY
OPTION
SETUP
DARK MEASUREMENT
INFORMATION
2. Press either or key to select
[OPTION] and then press
ENTER
key.
The MENU - OPTION screen appears on the LCD.
The current set contents are displayed in the [EXT-ND]
item.
NEGATIVE VALUE
NO PROC
CLOSE UP OFF
EXT-ND
OFF
USER CAL OFF
OPTION
(
1/2
)
2, 3, 4, 5
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