- 40X to 2000X magnification range for studying a range of specimens including hair follicles, cells, and bacteria. 10X and 20X eyepieces provide 8 unique magnification settings..
- A top choice for veterinarians, clinics, and classrooms, this micro provides high quality optics and precision mechanics..
- Professional features include a Siedentopf trinocular head for precise adjustments, a 2-layer mechanical stage with low-position controls, and coaxial coarse and fine focus for ergonomics and an efficient workflow..
- Halogen lighting reduces eye-strain for prolonged use. The trinocular photo port allows you to easily a camera. The T490 is compatible with our CX series C- photo ports with built-in reduction..
- Includes an oil darkfield condenser. Darkfield observation will provide contrast in otherwise indistinguishable objects by highlighting changes in refractive index..
The T490-DK adds darkfield illumination to our hardest-working
micro. A top choice for veterinarians, breeders, and
clinics, this instrument has proven reliability and optical
quality. It boasts features such as a compensation-free
Siedentopf head, smooth stage translation, and a precision focus
system with easy tension-adjustment and vertical-lock. The
simul-focal trinocular head provides a dedicated photo port which
can be used simultaneously with both eyepieces. With brightfield
and darkfield illumination, this model is ideal for bloodwork,
fluid-analysis, and pathology.
To customize the micro to your viewing comfort, the eyepiece
spacing can be easily adjusted using a precision Siedentopf
mechanism. A diopter is available on the both ocular tubes to
compensate for asymmetry, and the ocular tubes are angled at 30°
to comfortably accommodate a seated position without neck strain.
The 23mm photo port is height-adjustable to match focus with the
eyepieces, and can be replaced with an optional CX series C-
port which have built-in reduction, and can directly interface
with C- cameras.
The objective turret provides instant access to 4 magnification
levels to easily focus in on minute details from 40X to 1000X.
Additional 20X eyepieces expand the maximum magnification to
2000X with 8 unique levels. This covers magnifications needed for
studying hair follicles, cells, and bacteria. These high-quality
lenses are achromatically corrected to improve resolution and
color accuracy.
The 2-layer mechanical stage provides smooth and precise movement
for examination of specimen slides. The stage's low-position
controls are conveniently placed near the coaxial focus knobs for
a streamlined workflow. Examining specimen slides is intuitive
and precise for users at any skill level. Halogen sub-stage
lighting provides bright illumination with excellent color
rendering. The warm lighting is better suited for prolonged use,
causing less eyestrain than LED and fluorescent lighting. The
Abbe light condenser has a high 1.25 numerical aperture for
oil-immersion, and an iris diaphragm to optimize contrast and
depth-of-field. The condenser holder uses rack-and-pinion
movement for precise height adjustment.
An oil darkfield condenser is included for darkfield observation
using high-power objective lenses. Darkfield observation will
provide contrast in otherwise indistinguishable objects by
highlighting changes in refractive index. This is particularly
useful for observing live cells including blood analysis. The
condenser is designed for use with immersion oil, and can
accommodate medium and high magnification objectives. Two
centering screws allow you to properly center the condenser for
optimal contrast.
Specifications
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Optical System Finite-conjugate Mechanical Tube Length 160mm
Head Trinocular, 30° incline, 360° rotatable Interpupillary
Adjustment Siedentopf compensation-free gemel Ocular Diameter
23mm Eyepieces 10X, 20X Photo Port height-adjustable 23mm tube,
CX series, simul-focal Objective Lenses DIN standard Objective
Parfocal Distance 45mm Objective ing Thread RMS 20.32mm
Objective Turret quadruple Focusing System Coaxial coarse and
fine focus, upper limit-stop, tension control Focus Range 30mm
Division of Fine Focus 0.002mm Stage Design Double-layer with
caliper Stage Dimensions 140mm x 140mm X-Y Translation Range 75mm
x 45mm Transmitted Illumination 20W halogen Condenser NA1.25 Abbe
condenser with iris diaphragm, 32mm filter holder
NA1.25-1.36 oil darkfield condenser with centering knobs
Sub-stage Condenser-holder rack and pinion Power 110VAC 60Hz
Objective Lenses
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Magnification Corrections NA Immersion Medium Cover-glass
Thickness 4X achromatic 0.10 — 0.17mm 10X achromatic 0.25 —
0.17mm 40X achromatic 0.65 — 0.17mm 100X achromatic 1.25 oil
0.17mm
Packing List:
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* One trinocular head
* One micro body
* One photo port
* Four objective lenses: 4X, 10X, 40X, 100X
* One pair 10X eyepieces
* One pair 20X eyepieces
* One oil darkfield condenser
* One power cord (US and Canada standard)
* One dust cover
* Three color filters (blue, green, yellow)
* One spare halogen bulb
* One spare fuse
* One sample bottle of immersion oil