PR-655/670 User Manual
15
I
NSTRUMENT
S
TORAGE
When the PR-655/670 will be idle for an extended period of time, remove the battery pack from the instrument.
Store the battery pack in a cool dry place. The instrument including all standard accessories should be stored in
the provided soft carrying case.
S
TANDARD
O
BJECTIVE
L
ENS
The standard objective lens for the PR-655 and PR-670 is the MS-75 - a 75mm f/2.8 MacroSpectar
®
that focuses
from 1:4 magnification to infinity. This objective lens enables the PR-655/670 to perform a variety of
measurements including: luminance, radiance, and spectral radiance, chromaticity, correlated color
temperature (CCT), Color Rendering Index (CRI), dominant wavelength, etc.
For applications other than radiance
or luminance the PR-655/670 can be supplied with optical accessories such as a cosine receptor for irradiance /
illuminance, LR-127 LED Analyzer for testing LEDs for CIE 127 conformity, fiber probe for remote non-line-of-
sight luminance testing, and a series of magnification lens for small spot size analysis. Refer to Optional
Accessory section for more information on all available optical accessories.
FIGURE 18 - MS-75 OBJECTIVE LENS
I
NSTALLING AND
/R
EMOVING THE
S
TANDARD
L
ENS
The standard objective lens is installed by aligning the thread from the OBJECTIVE
lens with the instrument’s
lens mount and rotating clockwise while grasping the rubber ring toward the rear of the lens (see
18). The thread should offer minimum resistance during installation.
Grasp here to install or
uninstall lens.
Lens focusing ring
Содержание PHOTO RESEARCH SpectraScan PR-655
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Страница 106: ...PR 655 670 User Manual 90 FIGURE 87 USB POWER SCREEN Total power available Total power required...
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