The T490 is our hardest-working, go-to microscope. The 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 that can be used simultaneously with both eyepieces. The 490 series offers a wide range of optional accessories to expand functionality. The magnification range can be expanded with a large selection of objective and ocular lenses. Specialized condensers are available for dark-field and phase-contrast applications, ideal for bloodwork, fluid analysis, and pathology.
To customize the microscope to your viewing comfort, the eyepiece spacing can be easily adjusted using a precision Siedentopf mechanism. A diopter is available on 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-mount port which has a built-in reduction, and can directly interface with C-mount cameras.
The objective turret provides instant access to 8 magnification levels to easily focus in on minute details from 40X to 2000X. This covers the 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 the 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.
Monitor and capture photos and videos by including a digital camera camera. C-mount cameras are specially designed for use with microscopes, allowing you to watch live images, and record photos or videos on your computer. This ability to view microscopic images on your computer reduces eye strain and allows groups of people to view images at the same time. A reduction lens is included for use with 23mm-30.5mm ports to capture more of the microscope's field of view. Our professional software for Windows provides a wide assortment of capture and photo-editing functions including color correction, time-lapse capture, image stitching, and a full complement of measuring tools. A lite version of our software is available for Mac and Linux with essential functionality for capturing photos and videos.
Included Precise Temperature Control Stage Warmer
This microscope stage temperature control system ensures accurate, stable thermal control of live biological specimen observations. Ideal for checking semen motility, it is sized specifically for the user's stage warming needs and is adaptable to all brands of biological compound and stereo microscopes. The stage warming deck is made of high-tensile aluminum which maintains a precise, constant temperature of less than +/-.1° C between a set range of 20° C to 52° C. Pre-heating the stage takes 1 to 2 minutes resulting in reaching the constant temperature desired. This stage warmer is ideally suited to maintain stable specimen temperatures while examining or analyzing sperm motility and velocity or other live biological specimens under a microscope.
Specifications
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 Mounting 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 |
|
Sub-stage Condenser-holder |
rack and pinion |
|
Power |
110VAC 60Hz |
|
Stage Warmer
Preset Temp. Control Range |
15º C to 55º C |
|
Actual Stage Temp |
20º to 52º C |
|
Temp. Setting Increments |
+/-0.1º C |
|
Temp. Display Divisions |
0.1º C |
|
Dimensions |
|
|
Stage Plate |
152mm x 134mm x 3.2mm |
|
Control Unit |
205mm x 150mm x 75mm |
|
Stage Cord Length |
36" |
|
Power |
|
|
Input |
110V/220V (back panel switch) |
|
Output |
50W |
|
Objective Lenses
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:
- One trinocular head
- One microscope body
- One photo port
- Four objective lenses: 4X, 10X, 40X, 100X
- One pair of 10X & 20X eyepieces
- 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
- One Precise Temperature Control Stage Warmer