OMAX M837L Series LED Trinocular Compound Microscope 40X-2500X Magnification with Phase-Contrast Turret and Plan Optics
Key Features
- 40X to 2500X magnification range using brightfield objective lenses, and 100X to 2500X magnification using plan-achromatic phase-contrast objective lenses
- Along with the standard brightfield lenses, this phase-contrast version of the M837L includes specialized plan-achromatic objective lenses equipped with phase-rings, and a turret condenser with brightfield and phase-contrast settings.
- The trinocular viewing head uses sliding interpupillary adjustment, and offers a dedicated phot port
- Two-layer mechanical stage with caliper and coaxial X-Y controls, and symmetrical coarse and fine focus knobs provide precision adjustments with an ergonomic design for an efficient workflow
- Built-in illumination uses an energy-efficient LED with brightness control, and an Abbe condenser with an iris diaphragm to improve contrast and depth
The M837L series compound microscope is a class leader offering professional features at an affordable price. The trinocular viewing head is customizable and is equipped with a dedicated photo port which works simultaneously with both eyepieces. This phase-contrast model includes a specialized turret condenser and objective lenses used to enhance details in low-contrast specimens such as live cells and microorganisms.
Viewing Head
The trinocular viewing head has a comfortable 45° incline for viewing while seated or standing, and can be swiveled 360°. Ocular spacing can be easily customized using sliding interpupillary adjustment. Dual diopters allow both eyepieces to be focused independently. The trinocular photo-port adds a dedicated mounting tube for cameras. The 23mm tube is height-adjustable to fine-tune the focus to match the eyepieces. Its simul-focal design allows simultaneous use with both eyepieces so no switching is necessary.
Optics
This model includes four brightfield objective lenses and four phase-contrast objective lenses. The brightfield lenses provide a magnification range from 40X to 1000X when used with the standard 10X eyepieces, while the phase-contrast lenses provide a 100X to 1000X range. Additional 25X eyepieces are included to expand the maximum magnification to 2500X.
Objective Lenses
| Magnification | Corrections | NA | Immersion Medium | Cover-glass Thickness |
|---|---|---|---|---|
| Brightfield | ||||
| 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 |
| Phase Contrast | ||||
| 10X | plan-achromatic ph | 0.25 | — | 0.17mm |
| 20X | plan-achromatic ph | 0.40 | — | 0.17mm |
| 40X | plan-achromatic ph | 0.65 | — | 0.17mm |
| 100X | plan-achromatic ph | 1.25 | oil | 0.17mm |
Specimen Stage
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. A convenient lever grouped with the left-side focus knobs can be used to lock and unlock the coarse focus adjustment to prevent damage to the lenses and specimen.
LED Illumination
The LED sub-stage lighting provides cool, energy-efficient illumination. The light-source is daylight balanced to produce natural colors. 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 height adjustment for precision control.
A sub-stage mirror is included as an alternate light source when electricity is not available. The mirror can be mounted on top of the illuminator’s field lens to direct ambient light into the condenser.
Phase Contrast
A phase-contrast kit is included with a 5-position turret condenser and 4 plan-achromatic phase-contrast objective lenses. Phase contrast is used to reveal detail in indistinct objects, such as unstained cells and microorganisms that would otherwise appear invisible. By using a combination of specialized objective lenses and a modified light condenser, these invisible objects can be visualized by manipulating variations in phase. This turret condenser allows you to easily rotate through the brightfield and four phase-contrast settings (10X, 20X, 40X, 100X). Each phase-contrast setting has a centerable annulus for proper alignment. Each of the phase-ring equipped objective lenses has plan-achromatic corrections for improved color and resolution, as well as edge-to-edge sharpness.
Packing List:
| Head Type | Trinocular |
| Illumination Type | Transmitted |
| Light Source | LED |
| Microscope Format | Upright |
| Objective Lenses | 4X, 10X, 20X, 40X, 100X |
| Ocular Diameter | 23.2mm |
| Optical Corrections | Achromatic/Plan Achromatic Ph |
| Optical System | Finite |
| Power Compatibility | 100-240VAC 50/60Hz |
Omax products are warrantied against
manufacturer’s defects in material and workmanship from the original date of
purchase, for the following years:
• Five Year Warranty for Microscopes: All our microscopes come with
a five (5) year factory warranty against manufacturing defects, covering labor
and parts.
• One Year Warranty for Binoculars: All our Binoculars come with a One (1) year factory warranty
against manufacturing defects, covering labor and parts.
• One Year Warranty for Accessories: All our microscope accessories (USB cameras,
illuminators, illumination, dust covers, and etc.) come with a one (1) year
warranty, except when specified in the description.
Warranty does not apply for
consumable accessories and parts such as bulbs, batteries, fuses, cords,
optical components or any add-on accessories such as mechanical specimen
holders that are not built into the microscope stage as an integral part of the
original manufacture, etc. Warranty does not cover microscopes, lenses cameras
or other accessories that have become inoperable due to dirt or damage due to
misuse or lack of maintenance.
Note: Buyers are responsible for return shipping and handling cost for warranty
services. Our warranty covers parts and labor only.
The M837L series compound microscope is a class leader offering professional features at an affordable price. The trinocular viewing head is customizable and is equipped with a dedicated photo port which works simultaneously with both eyepieces. This phase-contrast model includes a specialized turret condenser and objective lenses used to enhance details in low-contrast specimens such as live cells and microorganisms.
Viewing Head
The trinocular viewing head has a comfortable 45° incline for viewing while seated or standing, and can be swiveled 360°. Ocular spacing can be easily customized using sliding interpupillary adjustment. Dual diopters allow both eyepieces to be focused independently. The trinocular photo-port adds a dedicated mounting tube for cameras. The 23mm tube is height-adjustable to fine-tune the focus to match the eyepieces. Its simul-focal design allows simultaneous use with both eyepieces so no switching is necessary.
Optics
This model includes four brightfield objective lenses and four phase-contrast objective lenses. The brightfield lenses provide a magnification range from 40X to 1000X when used with the standard 10X eyepieces, while the phase-contrast lenses provide a 100X to 1000X range. Additional 25X eyepieces are included to expand the maximum magnification to 2500X.
Objective Lenses
| Magnification | Corrections | NA | Immersion Medium | Cover-glass Thickness |
|---|---|---|---|---|
| Brightfield | ||||
| 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 |
| Phase Contrast | ||||
| 10X | plan-achromatic ph | 0.25 | — | 0.17mm |
| 20X | plan-achromatic ph | 0.40 | — | 0.17mm |
| 40X | plan-achromatic ph | 0.65 | — | 0.17mm |
| 100X | plan-achromatic ph | 1.25 | oil | 0.17mm |
Specimen Stage
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. A convenient lever grouped with the left-side focus knobs can be used to lock and unlock the coarse focus adjustment to prevent damage to the lenses and specimen.
LED Illumination
The LED sub-stage lighting provides cool, energy-efficient illumination. The light-source is daylight balanced to produce natural colors. 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 height adjustment for precision control.
A sub-stage mirror is included as an alternate light source when electricity is not available. The mirror can be mounted on top of the illuminator’s field lens to direct ambient light into the condenser.
Phase Contrast
A phase-contrast kit is included with a 5-position turret condenser and 4 plan-achromatic phase-contrast objective lenses. Phase contrast is used to reveal detail in indistinct objects, such as unstained cells and microorganisms that would otherwise appear invisible. By using a combination of specialized objective lenses and a modified light condenser, these invisible objects can be visualized by manipulating variations in phase. This turret condenser allows you to easily rotate through the brightfield and four phase-contrast settings (10X, 20X, 40X, 100X). Each phase-contrast setting has a centerable annulus for proper alignment. Each of the phase-ring equipped objective lenses has plan-achromatic corrections for improved color and resolution, as well as edge-to-edge sharpness.
Packing List:
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