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.
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
