MT5310H Halogen Trinocular Brightfield/Phase Contrast Biological Microscope

he Meiji Techno MT5310H is a trinocular brightfield/phase contrast compound microscope, part of the advanced MT5000 Series Biological Microscopes, designed for demanding research and clinical applications. This laboratory-grade upright microscope combines precision engineering, durability, and optical excellence, offering a cost-effective solution without compromising performance.

Equipped with Meiji Techno’s improved U.Plan optics and Infinity Corrected Optical System (ICOS™), the MT5310H delivers exceptionally sharp, flat, and high-contrast images, making the study of mounted specimens both fast and efficient. The brightfield technique provides clear imaging through transmitted white light, producing a dark specimen against a bright background—ideal for routine observation of stained samples. For unstained or transparent specimens, the phase contrast technique converts otherwise invisible phase shifts into visible brightness variations, producing vivid, high-contrast images critical for live cell studies and delicate biological samples.

Engineered for heavy-duty laboratory use, the MT5310H features a rigid, computer-engineered frame, a large ergonomic stage design, and low-positioned coaxial coarse and fine focus controls for maximum user comfort. Its cast aluminum alloy stand with chemical-resistant finish ensures long-lasting durability, while built-in features such as tension adjustment controls and a stage stop lever protect both specimens and objectives during use. With wider 30mm eyepieces and a larger stage compared to the MT4000 Series, the MT5310H is designed for enhanced workflow efficiency and long-term reliability.

The result is a microscope that balances rugged construction with optical precision, making the MT5310H an ideal choice for researchers, educators, and clinical professionals seeking uncompromised performance in both brightfield and phase contrast applications.

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Description

The Meiji Techno Trinocular Phase Contrast Brightfield Compound Microscope is engineered for advanced laboratory and clinical applications, combining versatility, precision, and durability. It is equipped with bright 30W halogen Köhler illumination, a quintuple nosepiece, and an auto voltage sensing power supply for reliable and efficient operation. Featuring a Zernike Phase Condenser and Meiji Techno’s advanced Infinity Corrected Optical System (ICOS™), this microscope delivers sharp, high-contrast images of both stained and unstained specimens.

Phase contrast functionality is achieved through the careful alignment of Meiji Techno’s optical components. Using a phase telescope inserted into one of the eyepiece ports, the condenser annulus located in the substage condenser turret is aligned with the phase plate situated in the rear focal plane of each Phase objective. Each objective requires a specifically matched annulus diameter based on its magnification and numerical aperture (N.A.): the Ph1 annulus is used for 10X and 20X objectives, the Ph2 annulus for the 40X objective, and the Ph3 annulus for the 100X high-power objective. Proper alignment ensures that illuminating light rays are accurately superimposed onto the objective’s phase ring, producing true phase contrast illumination for clear visualization of transparent, low-contrast specimens.

The result is a robust, laboratory-grade microscope that combines ergonomic design, advanced optical performance, and long-term reliability—making it an ideal solution for researchers, educators, and clinical professionals who require excellence in both brightfield and phase contrast imaging.

The Ph1 position in the Phase Condenser Turret facilitates Objectives Phase 10X and Phase 20X

The Ph2 position in the Phase Condenser Turret facilitates Objectives Phase 40X

The Ph3 position in the Phase Condenser Turret facilitates Objectives Phase 100X

The MT5000 Series features include:

  • Computer Aided Design
  • Ergonomically positioned controls
  • Comfortable Siedentopf viewing heads/li>
  • Your choice and preference in illumination, halogen or LED
  • Brightfield, darkfield and phase contrast observation modes
  • Available with motorized stage and focus drive
  • Optional Ergonomic Binocular Viewing Head Available

• MT5310H: Trinocular Phase Contrast Brightfield Compound microscope with Bright 30W Halogen Koehler illumination with quintuple nosepiece and auto voltage sensing power supply. Zernike Phase Condenser and Infinity Corrected Optical System

Includes:

VIEWING HEADS

Model MA815 is the Siedentopf-type binocular head and Model MA816 is the trinocular head for camera integration. Each head has the eyetubes inclined at 30 degrees with the left eyetube having graduated diopter settings. The interpupillary distance is adjustable between 53mm – 75mm. An 80/20 beamsplitter for the trinocular tube can be engaged for photo work. (100% to eyetubes or 80% to phototube & 20% to the eyetube.) The optional MA957, Ergonomic Binocular Viewing Head, has the inclination adjustable from 10 to 50 degrees to fit users of different heights. The Ergonomic Trinocular model comes with the MA958, photo/video attachment with sliding 80/20 beam-splitter (Included in MT5300ED).

   • MA816: Trinocular head-Siedentopf type .I.P. adjustment 53mm to 75mm, graduated diopter on left eyetube ( 30.0mm I.D. eyetube). Inclined at 30 degrees, 23.2mm trinocular tube O.D. (outer diameter trinocular tube)

 

EYEPIECES

10X Super Widefield High Eyepoint eyepieces F.N.22 are standard, and 15X and 20X eyepieces are available as an option. A Super Widefield High Eyepoint 10X focusable eyepiece that accepts 25mm reticules is also available.

   • MA817 (x 2): SWH10X high eyepoint eyepiece, Field No. 22, Tube O.D. 30.0MM (each)
• MA906 (x 2): Rubber Eyeshield for MA817, SWH10X eyepiece (each)

OBJECTIVES

Meiji Techno America offers an assortment of Planachromat Infinity Corrected (ICOS) objectives for Brightfield, Darkfield and Phase Contrast observation modes. Quintuple nosepiece provides effortless objective changes with smooth-operating, ball bearing mounted.

 MA839: U. Plan Phase Objective 10X, N.A. 0.25, W.D. 10.7mm, F.N. 24
MA840: U. Plan Phase Objective 20X, N.A. 0.40, W.D. 7.29mm, F.N. 24
MA841: U. Plan Phase Objective 40X, N.A. 0.65, W.D. 0.5mm, F.N. 24
MA842: U. Plan Phase Objective 100X oil, N.A. 1.25, W.D. 0.23mm, F.N. 244

 

CONDENSER

New design centerable Abbe 1.25 N.A. Condenser with built-in iris diaphragm in dovetail mount.

   •MA913: Zernike Phase condenser with centerable phase annuli for 10X, 20X, 40X 100X with brightfield position, dark-field stop for 40X objective, with iris in dovetail mount

 

STAGE

Ceramic coated standard right-handed or optional left-handed controls, flat top stage 191mm x 140mm with travel: 80mm(X) x 52mm(Y). Ergonomically positioned coaxial drop down controls. Available with motorized focus and stage controls.

   •MA458/05: Centering Telescope, 30.0mm O.D.


MA861/05: Green Interference filter(GIF), 44.0mm diameter, unmounted

MA459 Green Clear Filter 32mm Diameter Unmounted
• MA918R: Ceramic coated flat-top stage, 170mm x 140mm, 80mm x 52mm

ATTACHABLE FINGER ASSEMBLY FOR STABLE SLIDE PLACEMENT

• MA598: Attachable finger assembly for MA917R and MA917L

ILLUMINATION

Powerful white LED illumination provides enhanced image quality and brightness for the observation of specimens and photomicroscopy.

PHOTOMICROGRAPHY

Meiji Techno offers a broad range of digital video cameras which offers excellent sensitivity, high resolution and a wide dynamic range for the most demanding brightfield and darkfield microscopy applications including clinical pathology and cytology, life sciences and geology. Some models has included software, that can preview and capture still shots and live videos to a PC or Mac with USB port or HDMI connectivity.

BUILT IN HIGH EFFICIENCY TRANSMITTED HALOGEN ILLUMINATION AND FUSE WITH ADJUSTABLE RHEOSTAT

• MA326: Spare bulb 6V 30W Halogen lamp (Factory Installed)

• MA327: Spare 3A Fuse for Halogen illuminator (Factory Installed)

AC ELECTRIC CORD IS SUPPLIED WITH THE PROPER VOLTAGE SELECTED
• MA809/10/AC: Removable AC Electric cord with plug (round pin style) for 115V models (Included in all 115V models) comes with a 3 prong PC type cord or
• MA809/20/AC: Removable AC Electric cord with plug (round pin style) for 220V models (Included in all 220V models) comes with a 3 prong PC type cord.

DUST COVER FOR DUST PROTECTION
• MA701: Dust Cover for MT4000 (PLEASE MAKE SURE THAT THE UNIT IS TURNED COMPLETELY OFF BEFORE PUTTING ON THE DUST COVER)

FACTORY MANUAL SUPPLIED
• Manual: MT5000 Meiji Techno Instruction Manual
• Warranty: Limited Lifetime Warranty Card

Product Information:
• Manufactured: 100% MADE IN JAPAN
• Warranty: LIMITED LIFETIME WARRANTY
• Customer Support: 1-(800) 832-0060 (U.S.A Based)

Package Information:
• Weight: 34 lbs (15.4kg)
• Box Size: 16 x 14 x 21 inches
• Footprint: 263mm (D) x 176mm (W)
• Binocular head type: 390 mm(D) x 410mm (H) x 210mm(W) (8.0kg)( 29.0 lbs)
• Trinocular head type: 390 mm(D) x 465mm(H) x 210mm(W) (8.7Kg)( 30.0 lbs)
• Binocular Ergonomic head type: 390 mm(D) x 483mm (H) x 210mm(W) (8.4kg)(31 lbs)
• Trinocular Ergonomic head type: 390 mm(D) x 533mm(H) x 210mm(W) (8.9Kg)(33 lbs)

MT5000 SERIES BROCHURE

(CLICK TO DOWNLOAD FULL BROCHURE)

OPTIONAL CAMERA ACCESSORIES

CAMERAS (OPTIONAL)
Model HD1000-LITE HD1500T HD1500MET HD1500MET-AF
 
Type HDMI/USB 2.0 HDMI/USB 2.0Basic Measurement Features HDMI/USB 2.0Metrics Measurement Features HDMI/USB 2.0Auto-focusing/Z stack & stitching
Version Color Color Color Color
Mega Pixels 5MP 2-6MP 2-6MP 2-6MP
Resolution 2592 x 1944 3264 x 1840 Static
1920 x 1080 Dynamic
3264 x 1840 Static
1920 x 1080 Dynamic
3264 x 1840 Static
1920 x 1080 Dynamic
Frame Rate (FPS) 15fps by HDMI
15fps by USB 2.0
60fps by HDMI
30fps by USB 2.0
60fps by HDMI
30fps by USB 2.0
60fps by HDMI
30fps by USB 2.0
Sensor 1/2.5″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS
C-mount 0.3X 0.3X 0.3X 0.3X

 

CAMERAS WITH MONITORS (OPTIONAL)
Model HD1000-LITE-M HD1500TM HD1500MET-M HD1500MET-M-AF
Type HDMI/USB 2.0 HDMI/USB 2.0Basic Measurement Features HDMI/USB 2.0Metrics Measurement Features HDMI/USB 2.0Auto-focusing/Z stack & stitching
Monitor Size 11.8″ 11.8″ 11.8″ 11.8″
Version Color Color Color Color
Mega Pixels 5MP 2-6MP 2-6MP 2-6MP
Resolution 2592 x 1944 3264 x 1840 Static
1920 x 1080 Dynamic
3264 x 1840 Static
1920 x 1080 Dynamic
3264 x 1840 Static
1920 x 1080 Dynamic
Frame Rate (FPS) 15fps by HDMI
15fps by USB 2.0
60fps by HDMI
30fps by USB 2.0
60fps by HDMI
30fps by USB 2.0
60fps by HDMI
30fps by USB 2.0
Sensor 1/2.5″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS
C-mount 0.3X 0.3X 0.3X 0.3X

Components & Accessories – COMPOUND

Additional information

Components & Accessories

Included:
• MT5310H: Trinocular Phase Contrast Brightfield Compound microscope with Bright 6V 30W Halogen Koehler illumination with quintuple nosepiece and auto voltage sensing power supply. Zernike Phase Condenser and Infinity Corrected Optical System
• MA816: Trinocular head-Siedentopf type .I.P. adjustment 53mm to 75mm, graduated diopter on left eyetube ( 30.0mm I.D. eyetube). Inclined at 30 degrees, Inverted image
• MA817 (x 2): SWH10X high eyepoint eyepiece, Field No. 22, Tube O.D. 30.0MM (each)
• MA906 (x 2): Rubber Eyeshield for MA817, SWH10X eyepiece (each)
• MA839: U. Plan Phase Objective 10X, N.A. 0.25, W.D. 10.7mm, F.N. 24
•MA840: U. Plan Phase Objective 20X, N.A. 0.40, W.D. 7.29mm, F.N. 24
•MA841: U. Plan Phase Objective 40X, N.A. 0.65, W.D. 0.5mm, F.N. 24
•MA842: U. Plan Phase Objective 100X oil, N.A. 1.25, W.D. 0.23mm, F.N. 24
•MA913: Zernike Phase condenser with centerable phase annuli for 10X, 20X, 40X 100X with brightfield position, dark-field stop for 40X objective, with iris in dovetail mount
•MA458/05: Centering Telescope, 30.0mm O.D.
•MA861/05: Green Interference filter(GIF), 44.0mm diameter, unmounted
• MA918R: Ceramic coated flat-top stage, 170mm x 140mm, 80mm x 52mm
• MA598: Attachable finger assembly for MA917R and MA917L
• MA326: 6v 30W Halogen lamp (Factory Installed)
• MA327: 3 Amp Fuse for Halogen illuminator (Factory Installed)
• MA809/10: Removable AC Electric cord with plug for 115V models
• MA701: Dust Cover for MT5000

OPTIONAL COMPONENTS & ACCESSORIES BELOW

Viewing Heads:
• MA815: Binocular head – Siedentopf type, I.P. adjustment 53mm to 75mm, graduated diopter on left eyetube (30.0 mm I.D. eyetube). Inclined at 30 degrees Inverted Image (Included in Models MT5200L, MT5200H, MT5210L and MT5210H)
• MA957: Ergonomic tilting binocular head – Adjustable vertically from 10 to 50 degrees (30.0 mm I.D. eyetube) Erect image (Included in MT5200EL & MT5200EH)

Photo/Video Attachment:
• MA958: Photo / video attachment with sliding 80/20 beam-splitter. For use with video or digital cameras when MA957/05 ergonomic head is used (Included in all Ergonomic Trinocular models)

Eyepieces:
• MA818: SWH 15X Widefield high eyepoint eyepiece, Field No. 16.0, tube O.D. 30.0 mm (each) (19mm reticle mount)
• MA819: SWH 20X Widefield high eyepoint eyepiece, Field No. 12.0, tube O.D. 30.0 mm (each) (19mm reticle mount)
• MA859: SWH 10X-F Focusing eyepiece with reticle mount (without reticle), tube O.D. 30.0 mm (each) (25mm reticle mount)

U. Plan Objectives:
• MA830: U. Plan Objective 2.5X, N.A. 0.07, W.D. 5.7mm, F.N. 24
• MA833: U. Plan Objective 20X, N.A. 0.40, W.D. 7.29mm, F.N. 24
• MA835: U. Plan Objective 50X oil, N.A.0.87, W.D. 0.28 mm, F.N. 24
• MA836: U. Plan Objective 50X oil with iris, N.A. 0.87, W.D. 0.28mm, F.N. 24
• MA838: U. Plan Objective 100X oil with iris, N.A. 1.25, W.D. 0.23mm, F.N. 24

U. Plan Phase Objectives:
• MA839: U. Plan Phase Objective 10X, N.A. 0.25, W.D. 10.7mm, F.N. 24 (Included in Models MT5210L, MT5310L, MT5210H, MT5310H and Ergo models)
• MA840: U. Plan Phase Objective 20X, N.A. 0.40, W.D. 7.29mm, F.N. 24 (Included in Models MT5210L, MT5310L, MT5210H, MT5310H and Ergo models)
• MA841: U. Plan Phase Objective 40X, N.A. 0.65, W.D. 0.5mm, F.N. 24 (Included in Models MT5210L, MT5310L, MT5210H, MT5310H and Ergo models)
• MA842: U. Plan Phase Objective 100X oil, N.A. 1.25, W.D. 0.23mm, F.N. 24 (Included in Models MT5210L, MT5310L, MT5210H, MT5310H and Ergo models)

Zernike Phase Condenser:
• MA913: Zernike Phase condenser with centerable phase annuli for 10X, 20X, 40X, 100X with brightfield position, dark-field stop for 40X objective, (Black-out position for epi-fluorescence on MT6000 Series only) with iris in dove tail mount (Included in Models MT5210L, MT5310L, MT5210H and MT5310H and Ergo models)

Other Zernike Components:
• MA458/05: Centering Telescope, 30.0 mm O.D. (Included in Model MT5210L, MT5310L, MT5210H and Ergo models)
• MA861/05: Green Interference filter (GIF), 44.0 mm diameter, unmounted (Included in MT5210L, MT5310L, MT5210H and MT5310H and Ergo models)

Brightfield Condensers:
• MA910/10: Abbe condenser, N.A. 1.25, with centerable Phase annuli in slider for use with 20X and 40X Phase objectives, with iris diaphragm and dovetail mount
• MA910/15: Abbe condenser, N.A. 1.25 with darkfield stop in slider for use with 20X and 40X brightfield objectives, with iris diaphragm and dovetail mount
• MA911: Achromatic condenser, N.A. 1.25 with iris diaphragm and dovetail mount
• MA976: Abbe condenser, N.A. 0.90 with swing out top lens, iris diaphragm and dovetail mount For use with low power scanning objective, MA830

Darkfield Oil Immersion Objectives & Condenser System:
• MA836: U. Plan Objective 50X oil with iris, N.A. 0.87, W.D. 0.28mm, F.N. 24
• MA838: U. Plan Objective 100X oil with iris, N.A. 1.25, W.D. 0.23mm, F.N. 24
• MA914: Darkfield condenser, N.A. 1.25, dove-tail mount (with ball bearing)

Polarizer:
• MA915: Polarizer set for MT5000 Series microscopes
• MA915/PT#2: Unmounted 43mm polarizing filter for use with MA1043 Intermediate tube
• MA1043: Intermediate tube with built in analyzer and compensator slot for MT4000 & MT5000 Series (requires a MA915/PT#2 43mm polarizing filter)

Filters:
• MA858/05: ND 25 Neutral density filter, 44.0mm diameter, unmounted
• MA856/05: LB100 Blue Clear filter 44.0mm diameter, unmounted (Included with all halogen models) (Included with MT5200H, MT5300H, MT5210H, • MT5310H and Ergo halogen models)
• MA857/05: Green filter, clear, 44.0mm diameter, unmounted
• MA861/05: Green Interference filter,(GIF) 44.0mm diameter, unmounted (Included with MT5210L, MT5310L, MT5210H, MT5310H and Ergo models)

Stages
• MA918L: Ceramic coated flat-top stage, 190mm x 140mm with 80mm x 52mm X-Y movement, and left hand drop-down coaxial controls
• MA598: Attachable finger assembly for MA918R and MA918L
• MA676: Attachable clinical finger assembly for MA918R and MA918L

Eyepiece Micrometers (25mm diameter for the use with MA817 SWH 10x eyepiece)
• MA523: Cross-line reticle, 25mm diameter
• MA506: 10mm line divided into 100 units, 25mm diameter
• MA509: 5mm line divided into 100 units, 25mm diameter
• MA524: 10mm square divided into 400 parts, each square 0.5 mm, 25mm diameter
• MA510: 10mm square divided into 100 parts, each square 1.0 mm, 25mm diameter

Stage Micrometers
• MA285: 1mm divided into 100 units, 0.01mm
• MA286: 0.04” divided into 40 units, 0.001”

Replacement Bulbs & Fuses
• MA326: 6v 30W Halogen lamp
• MA327: 3 Amp Fuse for Halogen illuminator

Miscellaneous
• MA977: Eye level riser for MT Series stands