COLO-OPTIC900TL Trinocular Biological Microscope (Infinity Plan Achromatic, LED)
OVERVIEW
The COLO-OPTIC900TL is a professional trinocular biological microscope built on an infinity-corrected plan achromatic optical system with
Koehler illumination and a stable 5W adjustable LED transmitted light source. It combines ergonomic viewing, precise coaxial focusing and a dedicated camera port for
routine laboratory work, education and documentation.
LED illumination provides high brightness with low heat generation and long operating lifetime, supporting comfortable extended observation and consistent imaging.
With high eye-point wide-field eyepieces, Siedentopf head and the choice of ceramic or rackless mechanical stage, OPTIC900TL delivers bright, high-contrast brightfield images and
can be expanded with optional phase contrast, darkfield and camera adapters from the OPTIC900 platform.
COLO.SCIENCE KNOWLEDGE
Koehler LED illumination in brightfield microscopy
Learn how to set up Koehler illumination for LED transmitted light, optimize contrast and field diaphragm alignment,
and prepare your COLO-OPTIC900 series microscope for reliable routine imaging on COLO.Science.
TYPICAL APPLICATIONS
- Routine brightfield observation of stained and unstained biological specimens
- Microbiology, smears and microorganism studies in teaching and clinical labs
- Education and training in schools, universities and medical programmes
- Quality control and routine inspection in biomedical and industrial laboratories
- Camera documentation and digital microscopy (trinocular photo port)
- Entry-level phase contrast and darkfield (with optional condensers and sliders)
MODELS & DIMENSIONS
| Model | Head / illumination | Stage type | Dimensions / weight |
|---|---|---|---|
| COLO-OPTIC900TL | Trinocular, brightfield, 5W LED (transmitted) with Koehler illuminator | 156 × 138 mm ceramic stage (standard) or ~193 × 155 mm rackless stage (optional) | See catalog (PDF) |
TECHNICAL SPECIFICATIONS
| Product name | COLO-OPTIC900TL Trinocular Biological Microscope |
| Type | Laboratory trinocular brightfield microscope with infinity plan achromatic optics and LED transmitted illumination |
| Eyepieces | High eye-point wide-field eyepieces WF10x/20 mm (standard platform option); optional WF10x/22 mm, pointer and reticule eyepieces available. |
| Head | Trinocular Siedentopf-type head, 30° inclined tubes, interpupillary distance 48–75 mm, ±5 diopter adjustment, 360° rotatable. Photo port (typical split 20:80) for camera documentation; additional head configurations available on request. |
| Nosepiece | Revolving, reversed inward-facing nosepiece for 4–5 objectives depending on configuration. |
| Objectives – standard | Infinity plan achromatic objectives: 4x/0.10, 10x/0.25, 40x(S)/0.65, 100x(S)/1.25 oil. Objectives are antifungal coated and optimized for high numerical aperture and flat field. |
| Objectives – optional | Optional infinity plan achromatic objectives (e.g., 2x, 20x, 60x) and phase contrast objectives available; see configuration list in the catalog. |
| Stage – standard | Right-handed mechanical stage 156 × 138 mm with 76 × 54 mm XY travel and double slide holder. Metal construction for durability, with fine graduation and smooth movement. |
| Stage – optional | Rackless stage ~193 × 155 mm with 75 × 50 mm XY travel for improved ergonomics; heating and motorized stages available on request. |
| Condenser | Abbe condenser NA 0.9/1.25 with iris diaphragm and filter holder, height and centring adjustable. Optional turret phase-contrast condenser, darkfield condensers and phase/darkfield sliders available. |
| Focusing | Coaxial coarse and fine adjustments, 100 graduations, 1 μm per graduation, 100 μm per rotation, total travel approx. 14 mm (up to ~25 mm depending on configuration). Adjustable rack stop to protect samples and objectives; coarse focus with torque (friction) adjustment. |
| Illumination | Koehler illuminator with field diaphragm and 5W adjustable LED transmitted light source (standard for OPTIC900TL), 100–240 V AC power supply. Light intensity continuously adjustable. Low energy consumption, minimal heating and long operating lifetime; battery options may be available on request. |
| Optical system | Infinity independent plan achromatic optical system, F = 200 mm; high NA objectives and large apertures provide crisp images with minimal flare and high resolving power. |
| Configuration list | Standard and optional items (heads, eyepieces, objectives, stages, condensers, illuminators, filters, camera adapters and accessories) according to the detailed configuration table in the OPTIC900 catalog. |
STANDARD DELIVERY & ACCESSORIES
- COLO-OPTIC900TL microscope stand with trinocular Siedentopf head
- Pair of high eye-point wide-field eyepieces (secured)
- Standard set of infinity plan achromatic objectives 4x, 10x, 40x(S), 100x(S) oil
- Right-handed mechanical stage 156 × 138 mm with 76 × 54 mm travel (or rackless stage if ordered)
- Abbe condenser NA 0.9/1.25 with iris diaphragm and filter seat
- Koehler illuminator with 5W LED module and built-in power supply (100–240 V)
- 1x C-mount / camera adapter interface (platform-dependent; see selected configuration)
- Power cord, spare fuse and basic accessory kit (Allen screwdriver, immersion oil)
- Dust cover and user manual / quick start guide
- Optional: phase-contrast condensers, darkfield condensers and phase/darkfield sliders
- Optional: additional C-mount adapters, DSLR adapters, microscope camera and filters
Exact contents according to selected configuration, current catalog and order confirmation.
MAIN TECHNICAL PARAMETERS
| Optical system | Infinity independent plan achromatic optical system, brightfield; expandable with phase and darkfield options. |
| Observation methods | Brightfield (standard); optional phase contrast and darkfield with appropriate condensers and accessories. |
| Magnification range | Standard: 40x–1000x (4x, 10x, 40x, 100x oil with 10x eyepieces); expanded range possible with optional 2x, 20x and 60x objectives. |
| Head type | Trinocular Siedentopf head, 30° inclined, interpupillary distance 48–75 mm, diopter adjustment; photo port for camera documentation. |
| Eyepieces | Wide-field high eye-point eyepieces; optional pointer/reticule and extended field variants available. |
| Stage travel | Mechanical stage travel approx. 76 × 54 mm (ceramic) or 75 × 50 mm (rackless) specimen area. |
| Focusing precision | Fine focus 1 μm per graduation, 100 μm per rotation; total focusing range approx. 14 mm. |
| Illumination | Koehler LED transmitted illumination (5W), adjustable intensity; stable, cool operation for routine microscopy and imaging. |
| Application focus | Routine biological brightfield, microbiology, teaching, QC laboratories and digital documentation using trinocular optics with efficient LED lighting. |
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