A) RATNA
GIM-X GEM MICROSCOPE
Stereo zoom binocular microscope (zoom ratio 1:4)
with multi-layer coated precision optics to ensure
excellent image quality, high resolution, good depth
of focus and wide field of view (22.5 mm at 10x).
Stepless magnification 10x to 80x (with 10x &
20 wide-field eyepieces) – The image remains
precisely in focus over the entire zoom range. Magnification
can be further increased to 160x by use of optional
doubler lens.
Digital camera attachment ( optional
) which enables photography through the scope conveniently.
Pre-focussed 12v 30w halogen lamp coupled with darkfield
adapter/iris diaphragm help to determine if the gem
is natural or synthetic.
Standard accs : 20x eyepieces, fibra optic guide,
magnetic gem holder, Spare lamp, rollaway carry bag.
(B)
B)
RATNA XTL-II
GEM MICROSCOPE
Stereo zoom microscope with new optical design and
10x widefield eyepieces provides stepless magnification
from 10x to 40x. Specially coated optics provide good
resolution, higher contrast, better color saturation,
depth of focus and wide field of view (22.5mm at 10x)
– all features so essntial in gemology. Eyepieces
are individually ficused and IPD from 55 to 75mm easily
adjusted. New design of dark field adapter with iris
diaphragm and halogen illumination.
Optional circular fluorescent light
is an aid for grading diamond/colored stones.
Standard accs : gem holder, dark field adapter with
iris diaphragm, diffuser, daylight filter, black /white
acrylic plate, spare lamp.
(C)
C)
RATNA IMMERSIONSCOPE GIM-Z WITH STEREO ZOOM MICROSCOPE
The gem under study is held in an immersion cell containing
a special liquid and observed through the
stereo binocular microscope (same specification as
RATNA XTL-II microscope head). The microscope is focused
horizontally on the gemstone by conveniently located
controls. The halogen illumination system with iris
diaphagm and diffusor is mounted on a moving arm.
It enables the gemologist to vary the beam wide and
angle of incidence and observe the characteristics
of the gemstone held in the liquid.
S-307 (A)
S-307
GEM
INSTRUMENTS
A) GEM REFRACTOMETER
Compact gem refractometer complete with polarising
filter, illumination system and refractive index 1.81
liquid
(B)
B)
RATNA POLARISCOPE
An elegantly designed polariscope with a cool light,
slit aperture in the front for using it for illumination
of refractometers, built in stand for conoscope and
a conoscope.
(C)
C) THE RATNA
WORK STATION GIM Z
A space saving device for the gemologist.
