Specifications

5
Superlative Optical Performance
50X
Thanks to a new design of optical tube and modification
of the objective lens specifications, flare that occurs within
the optical system is suppressed as much as possible so
that minute details on the workpiece are clearly shown.
In addition, the internal black finish achieves a high
image contrast and clear observation. The MF-U Series is
equipped with the established FS system metallographic
microscope head which provides vivid images of high color
reproducibility and features primary-color correction. (The
objective lenses are plan apochromat*.)
With much higher lighting efficiency in the optical
system, which ensures sufficient illumination intensity,
this series attains high-magnification measurements and
a dark-field observation environment that is efficient and
less tiring.
Uncertainty (X, Y) = (0.25 + 0.02L)µm
Image brightness is about double compared with
conventional microscopes.
Conventional microscope
Image of outer cover of floppy disk
MF/MF-U Series microscopes
Reference : JIS B 7153 measuring microscope measuring accuracy
at each axis (20˚C)
Level 0 (2 + 0.01L)µm or less Level 1 (4 + 0.02L)µm or less
L = measurement length (mm)
Line standard calibrator
Underground facility temperature fluctuation graph
Glass scales
Microscope images on this page are digital images, so they differ somewhat from the actual images.
50X
Measuring Accuracy Approaching JIS Level 0
Measuring microscopes must operate at a high level in terms of
measuring accuracy and optical performance.
This series achieves the quoted measuring uncertainty for all
stage sizes**.
We believe that this series, which achieves a large measurement
range and high accuracy at the same time, will help you in every
measurement situation.
**Measured conforming to the measurement method at each of the X and Y axes stipulated by JISB7153.
The digital scale built into the microscope body is a photoelectric
type transmission linear encoder, with a maximum response
speed of 50 m/min. This scale features high accuracy
specifications developed in our underground research facility
which is equipped with the world’s highest scale accuracy
evaluation technology.
Mitutoyo acquired the first certification for calibration of line
standards (standard scale of 500mm or less) in Japan.
*Image distortion and chromatic aberration in the wavelength range of the three primary colors
(blue, yellow and red) are corrected.
(Common to MF and MF-U)
X-axis measuring
accuracy
Standard
Standard