GBS 14.2603-TR Trinocular Inverted Biological Microscope | 100x–640x | Koehler 5W LED | GBS Microscopes India
Inverted Microscopes · Biological Series

Trinocular Inverted Biological Microscope

A14.2603-TR

The GBS A14.2603-TR is a professional-grade trinocular inverted biological microscope designed for cell culture, tissue culture, IVF, live cell imaging, and research laboratory applications. With a Seidentopf trinocular head, Koehler 5W LED illumination, LWD quintuple nosepiece delivering 100x–640x magnification, and a 72mm long working distance that accommodates tall culture vessels and 96-well plates — it delivers fatigue-free, high-contrast observation. Available from Global Bioscience Solutions with PAN India delivery from Bengaluru.

Product Specifications at a Glance
Magnification Range
100× – 640× Total
Eyepiece
WF10×/22mm Wide-Field
Head Type
Seidentopf Trinocular 45°
Nosepiece
Quintuple LWD Infinity Plan
Working Distance
72mm (with condenser)
Stage Size
210×241mm Mechanical
Illumination
Koehler 5W LED, Adjustable
Condenser N.A.
LWD N.A. 0.3 · Up to 195mm
In Stock · PAN India Delivery Available
100–640×
Magnification
72mm
Working Distance
210×241
Stage (mm)
5W
Koehler LED
N.A. 0.3
Condenser
45°
Head Inclination
Product Overview

Observe Life. Precisely.

The GBS A14.2603-TR is a professional trinocular inverted biological microscope built for sustained cell and tissue observation. With objectives below the stage, a 72mm long working distance, and Koehler 5W LED illumination — it handles culture flasks, petri dishes, and 96-well plates with ease.

Seidentopf Trinocular Head, 45° Inclined

Light-split switch E100:P0 / E20:P80 routes light fully to eyepieces for observation or splits to the camera port for imaging. IPD adjustable 48–76mm. Diopter-adjustable WF10x/22mm eyepieces for spectacle wearers.

Koehler 5W LED Illumination

Uniform, adjustable-intensity LED transmitted light powered via safe low-voltage adapter (100–240V input, 5V output). Supports outdoor and power-bank use. Cooler and more consistent than halogen alternatives.

LWD Quintuple Nosepiece — Infinity Plan Semi-APO Objectives

Standard configuration includes 10x/0.25, 20x/0.45, and 40x/0.65 L Plan FL objectives. Optional 4x and phase contrast objectives for expanded capability. Coaxial coarse & fine focusing with elasticity adjustment.

72mm Long Working Distance Condenser

LWD condenser N.A. 0.3 with 72mm clearance (with condenser) and up to 195mm without condenser. Accommodates tall culture vessels including Erlenmeyer flasks, T-flasks, and deep well plates.

210×241mm Mechanical Stage — 96-Well Plate Ready

Large mechanical stage with Ø110mm round slide holder. Optional attachable stage for 96-well plates (128×80mm range), culture dish holders in 35mm, 54mm, and 65mm sizes, and universal holder for non-standard vessels.

Upgradeable to Fluorescence Microscopy

The A14.2603-TR can be upgraded to the A16.2614 inverted fluorescence platform with B/G or B/G/U/UV filter sets, 100W mercury or 5W LED lamp houses — all available as optional accessories from GBS.

Applications

Where It Performs Best

Cell & Tissue Culture

Live cell observation in flasks, dishes, plates

IVF & Embryology

Oocyte, embryo, sperm observation

Cytology & Oncology

Cancer cell lines, tumour biology research

Stem Cell Research

iPSC, stem cell culture monitoring

Microbiology & Parasitology

Bacteria, protozoa, sediment observation

Pharma & Biotech QC

Cell viability, contamination screening

Aquaculture & Marine Bio

Plankton, larvae, live culture monitoring

University & Research Labs

CSIR, DBT, ICMR, university life sci labs

Full Technical Data

Technical Specifications

Complete optical, mechanical and electrical parameters for the GBS A14.2603-TR.

100–640×
Magnification
72mm
Working Distance
5W
LED Power
210×241mm
Stage
N.A.0.3
Condenser
45°
Head Angle
Optical System
Total Magnification100× – 640× (with WF20× eyepiece)
Standard Magnification100× – 400× (WF10×/22mm)
Objectives (standard)LPL 10×/0.25 WD=10.3mm; 20×/0.45 WD=5.8mm; 40×/0.65 WD=5.1mm
Objective TypeLWD Infinity Plan Semi-APO (L Plan FL)
Optional 4× ObjectiveL Plan FL 4×/0.11 WD=12.1mm
Phase ContrastL Plan FL PHP 20×/0.45; 40×/0.65 (optional)
NosepieceQuintuple, large diameter LWD
Head & Eyepiece
Head TypeSeidentopf Trinocular, 45° inclined
Light SplitE100:P0 / E20:P80 switch
IPD48–76mm adjustable
Eyepiece (standard)WF10×/22mm, Ø30mm, high eyepoint
DiopterAdjustable both eyepieces
Optional WF15×WF15×/16mm, Ø30mm
Optional WF20×WF20×/12mm, Ø30mm (→ 640× max)
Focus System
Focus TypeCoaxial coarse & fine, elasticity adjustable
Tension AdjustmentYes — adapts to different operators
Stage & Holders
Stage Size210 × 241mm mechanical
Round Slide HolderØ110mm (standard)
96-Well Plate StageOptional — 128×80mm moving range
Culture Dish 54mmStandard included
Culture Dish 35mmOptional
Culture Dish 65mmOptional
Universal HolderOptional (2021 accessory)
Round Glass HolderOptional (2021 accessory)
Illumination & Condenser
Illumination TypeKoehler 5W LED, adjustable brightness
Power Input100–240V AC (wide voltage)
Safety Output5V/1A low-voltage adapter
Power Bank SupportYes — outdoor use capable
Condenser TypeLWD, quickly detachable
Condenser N.A.0.3
Working Distance72mm (with condenser)
Without CondenserUp to 195mm
Filters (standard)Blue Ø34mm, Green Ø34mm
Build & Package
BodyDiecast alloy, anti-fungal, anti-mould coating
Packing Size660 × 590 × 325mm
Gross Weight18 kg
Net Weight13.5 kg

Optional Accessories & Upgrades

Expand the capability of your A14.2603-TR with these factory-tested accessories, all available through GBS.

Accessory / UpgradeDetailsCategory
WF15×/16mm EyepieceØ30mm, high eyepoint, diopter adjustableEyepiece
WF20×/12mm EyepieceØ30mm — extends total mag to 640×Eyepiece
L Plan FL 4×/0.11 ObjectiveWD=12.1mm, LWD infinity planObjective
Phase Contrast 20× ObjectiveL Plan FL PHP 20×/0.45 WD=5.8mmPhase Contrast
Phase Contrast 40× ObjectiveL Plan FL PHP 40×/0.65 WD=5.1mmPhase Contrast
Phase Contrast Centering Telescope11× centering telescopePhase Contrast
Phase Contrast Annular Spots4×, 10×, 20×/40× setsPhase Contrast
96-Well Plate StageAttachable, 128×80mm moving rangeStage
Culture Dish Holder 35mmFor 35mm petri dishesStage
Culture Dish Holder 65mmFor 65mm petri dishesStage
Universal HolderFor non-standard vessels (2021)Stage
C-Mount 0.5×Focus adjustable camera adapterCamera
C-Mount 0.75×Focus adjustable camera adapterCamera
C-Mount 1.0×Focus adjustable camera adapterCamera
Amber / Grey Filters Ø34mmExpand contrast for different specimensFilters
ECO Auto Power-Off System10-min auto-off, proximity power-onPower
Fluorescence Upgrade (B,G)→ A16.2614-L2: 5W LED, B&G filter setsFluorescence
Fluorescence Upgrade (B,G,U,UV)→ A16.2614-L4: 5W LED, 4-filter setsFluorescence

Need phase contrast or fluorescence imaging?

Our team will configure the right accessory bundle for your application — free consultation.

Talk to a Specialist
Downloads

Product Documents

Download the product brochure or optional accessories list for the GBS A14.2603-TR.

Product Brochure
PDF · GBS A14.2603-TR
Optional Accessories List
PDF · Objectives, cameras, stages

Need the instruction manual or compliance certificates? Contact our team and we'll send them over.

Got Questions?

Frequently Asked Questions

Everything you need to know about the GBS A14.2603-TR Inverted Biological Microscope.

With the standard WF10×/22mm eyepieces and the included 10×, 20×, and 40× objectives, total magnification ranges from 100× to 400×. Adding the optional WF20×/12mm eyepiece extends this to 640×. An optional 4×/0.11 objective further extends the lower end to 40×.

In an inverted microscope the objectives are below the stage, pointing upward. This lets you observe living cells in standard culture vessels (petri dishes, flasks, well plates) from underneath without disturbing or inverting the sample. The 72mm long working distance accommodates tall containers — including Erlenmeyer flasks and T-75 culture flasks.

Yes. An optional attachable mechanical stage (moving range 128×80mm) accommodates standard 96-well plates. The standard stage (210×241mm) with Ø110mm round slide holder and 54mm culture dish holder is included. Holders for 35mm, 65mm dishes, blood cell counters, and a universal holder are available as optional accessories.

Yes. Optional phase contrast objectives (L Plan FL PHP 20×/0.45 and 40×/0.65) combined with the phase contrast centering telescope (11×) and annular spot sliders allow phase contrast observation — ideal for unstained living cells such as tissue culture and microbiology specimens.

Yes. The trinocular camera port with light-split switch (E100:P0 / E20:P80) accepts C-mount adapters in 0.5×, 0.75×, and 1.0× (all focus-adjustable). Connect USB 3.0, HDMI, or Wi-Fi digital cameras for live imaging and documentation.

Yes. The A14.2603-TR can be upgraded to the full A16.2614 inverted fluorescence platform. Options include: A16.2614-L2 (B & G filters, 5W LED) and A16.2614-L4 (B, G, U, UV filters, 5W LED). Mercury lamp-based upgrades (A16.2614-2 / -4) are also available through GBS.

Yes. Global Bioscience Solutions provides installation, operator training, and ongoing technical support with PAN India delivery from Bengaluru. Call +91 97436 20456 or WhatsApp +91 83109 17234 for assistance.

Talk to Our
Microscope Experts

Get pricing, choose accessories, or book a demo — our team responds within 24 hours.

or reach us by email
sales@globalbiosciencesolution.com

Business Hours

Mon–Fri: 9:00 AM – 6:00 PM  |  Sat: 9:00 AM – 2:00 PM
Client Feedback

Trusted by Labs Across India

★★★★★

"The A14.2603-TR is perfect for our cell culture facility. The 72mm working distance easily accommodates our T-75 flasks, image quality is sharp even at 400×, and the LED illumination is very consistent. GBS delivery and setup were seamless."

AR
Dr. Arun R.
Cell Biology Lab Head, Biotech Company, Pune
★★★★★

"Excellent inverted microscope for our embryology lab. The trinocular port and C-mount adapter connect perfectly to our imaging camera. Phase contrast objectives work well for oocyte grading. Highly recommended for IVF applications."

SM
Dr. Sunita M.
Senior Embryologist, IVF Centre, Bengaluru
★★★★★

"Our microbiology department uses the A14.2603-TR for live cell and protozoa observation. The Koehler LED gives beautifully uniform illumination and the 96-well plate stage attachment was a great add-on. GBS support team has been responsive."

PK
Prof. Pradeep K.
HOD Microbiology, Central University, Karnataka
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Cameras

GBS Digital Microscope Camera

USB 3.0 & HDMI cameras with C-mount adapters for the A14.2603-TR trinocular port. 5MP, 10MP, 20MP options.

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Phase Contrast

Phase Contrast Objective Set

L Plan FL PHP 20×/0.45 & 40×/0.65 objectives with centering telescope and annular spot sliders for the A14.2603-TR.

Enquire →
Stage Accessories

96-Well Plate Stage Adapter

Attachable mechanical stage for 96-well plate screening — 128×80mm moving range. Compatible with A14.2603-TR.

Enquire →