Optika B-383DK Trinocular darkfield microscope, 1000x IRIS, PLAN
€1.874,00 excl. VAT
The Optika B-383DK is a trinocular darkfield microscope built for fresh blood analysis and general laboratory darkfield work. It pairs N-PLAN objectives at 4x, 10x, and 40x with a W-PLAN 100x oil iris objective for high resolution darkfield observation. The condenser integrates an exclusive X-LED3 illuminator directly in the darkfield position, replacing external high-power light sources. A second Abbe condenser covers standard brightfield work on the same stand. It suits laboratories that need both brightfield and immersion darkfield observation in one microscope.
Trinocular Darkfield Microscope for Fresh Blood Analysis and Laboratory Use
The Optika B-383DK combines brightfield and immersion darkfield observation on one trinocular stand. Its darkfield condenser has an X-LED3 illuminator built in, replacing the external 150 W light sources that traditional cardioid darkfield condensers require. The W-PLAN 100x oil iris objective gives high resolution darkfield images for fresh blood analysis.
- Built-in X-LED3 illuminator in the darkfield condenser, N.A. 1.36
- W-PLAN 100x oil iris objective for immersion darkfield work
- N-PLAN 4x, 10x, 40x objectives for brightfield overview
- Trinocular head for camera documentation alongside visual observation
- Suited to fresh blood analysis and general darkfield laboratory work
Optika B-383DK Trinocular Darkfield Microscope
The Optika B-383DK is a trinocular darkfield microscope from the B-380 series, built for fresh blood analysis and general laboratory darkfield work. It combines N-PLAN brightfield objectives with a W-PLAN 100x oil iris objective for darkfield.
The darkfield condenser carries an integrated X-LED3 illuminator, removing the need for an external high-power light source.
Immersion Darkfield with Built-in X-LED3
The special condenser with integrated X-LED3 illuminator gives darkfield results equivalent to 150 W external illuminators combined with a traditional cardioid darkfield condenser, with N.A. 1.36.
Dual Condenser System
A second Abbe N.A. 1.25 condenser, focusable and centerable, covers standard brightfield observation on the same stand, so the microscope switches between techniques without changing accessories.
W-PLAN 100x Iris Objective for Darkfield
The W-PLAN 100x oil objective includes an iris diaphragm and covers a numerical aperture range of 0.36 to 1.25, matched to darkfield oil immersion work.
Trinocular Head for Documentation
The trinocular head adds a camera port alongside the binocular viewing path, so darkfield images can be documented while observing.
Ideal Applications
The B-383DK suits laboratories that need darkfield alongside brightfield observation.
- Fresh blood cell analysis
- Live specimen and microorganism observation
- Unstained sample darkfield screening
- Combined brightfield and darkfield laboratory workflows
- Camera-based documentation of darkfield images
Choose the B-383DK when:
- You need immersion darkfield without an external light source
- You want brightfield and darkfield on the same stand
- You perform fresh blood analysis or unstained live sample work
- You need a trinocular head for camera documentation
Optika Value Proposition
The Optika B-383DK combines a built-in X-LED3 darkfield condenser with a standard Abbe brightfield condenser on one trinocular stand, backed by Optika 10-year mechanical and optical warranty plus lifetime X-LED warranty.
Technical specifications – B-383DK
| Specification | B-383DK |
|---|---|
| Type | Upright, aluminum die-cast, transportation handle |
| Head | Trinocular, Siedentopf, split ratio 50/50, 30 degree inclination |
| Interpupillary distance | 48-75 mm, diopter adjustment on both tubes |
| Eyepieces | WF 10x, field number 20 mm, high eyepoint, rubber cup |
| Nosepiece | Quintuple, reversed, bi-directional, ball bearing rotation |
| Objectives | N-PLAN 4x, 10x, 40x; W-PLAN 100x oil with iris, anti-fungus treated |
| Stage | Double layer, 150×139 mm, rackless, moving range 75×33 mm |
| Brightfield condenser | Abbe N.A. 1.25, iris diaphragm, focusable and centerable |
| Darkfield condenser | Immersion darkfield, N.A. 1.36, built-in X-LED3 |
| Focusing | Coaxial coarse and fine, coarse travel 25 mm, fine resolution 2 um |
| Illumination | X-LED3, 3.6 W, manual brightness control |
| Color temperature | 6300 K, lifetime over 65000 hours |
| Power supply | External, 100-240 Vac 50/60 Hz, output 6 Vdc 2.5 A |
| Product weight | 7.5 kg |
Options and Accessories – B-383DK
The B-383DK ships with N-PLAN 4x, 10x, 40x, and W-PLAN 100x oil iris objectives as standard. A carrying case and additional accessories extend the system.
| Objective | Numerical aperture | Working distance | Use |
|---|---|---|---|
| N-PLAN 4x | 0.10 | 15.2 mm | Brightfield overview |
| N-PLAN 10x | 0.25 | 5.5 mm | Brightfield / darkfield |
| N-PLAN 40x | 0.65 | 0.45 mm | Brightfield / darkfield |
| W-PLAN 100x (oil, iris) | 0.36-1.25 | 0.1 mm | Darkfield oil immersion |
- B-383DK-CS variant with carrying hard case
- M-160 WF10x/20 high eyepoint eyepiece
- M-173 photo adapter for APS-C and Full Frame reflex cameras
- M-114 C-Mount adapter for 1/2 inch sensor
- 15008 Optika immersion oil 10ml
- 15104 cleaning kit
Alternative Darkfield microscopes

- Type: Darkfield, trinocular
- Magnification: Up to 1000x
- Optics: IOS W-PLAN, infinity corrected
- Illumination: X-LED3, built-in darkfield X-LED
- Head: Trinocular, 30 degree inclined
€2.258,00 excl. VAT


