Nexcope NE620 Biological Microscope
The Nexcope NE620 compound microscope is an excellent quality workhorse microscope. It offers very high optical performance in at a very affordable price.
Clever Ergonomic Features
Automatic Brightness Switching
One of the stand out features of the NE620 is the automatic brightness control. When the operator changes objectives, the intelligent controller switches the brightness to the last used setting.
Automatic Sleep Timer
The illumination controller also allows for a sleep timer that turns the LED illumination off after a set period.
Excellent Optical Design
NIS Infinity Optical System
The NE620 comes with NIS65 infinity plan achromat objectives and 10x eyepieces with a wide 22mm field of view. Infinity optical systems allow for more colour correction and the easy addition of additional contrast techniques.
Quality Plan Achromat Objectives
Nexcope objectives offer clear, bright and flat images. In addition to the standard 4×, and 10×, objectives, the 40× has a long 1.5mm working distance, and 100× objectives are available in oil or water immersion versions.
Objective Specifications
| Objective Type | Magnification | NA | Working Distance (mm) |
Immersion |
|---|---|---|---|---|
| NIS60 Infinity Plan Achromat | 4× | 0.1 | 30 | |
| NIS60 Infinity Plan Achromat | 10× | 0.25 | 10.2 | |
| NIS60 Infinity Plan Achromat | 40× | 0.65 | 1.5 | |
| NIS60 Infinity Plan Achromat | 100× | 1.1 | 0.16 | Water |
| NIS60 Infinity Plan Achromat | 100× | 1.25 | 0.2 | Oil |
| NIS60 Infinity Plan Phase Contrast | 10× | 0.25 | 10.2 | |
| NIS60 Infinity Plan Phase Contrast | 20× | 0.4 | 4.8 | |
| NIS60 Infinity Plan Phase Contrast | 40× | 0.65 | 1.5 | |
| NIS60 Infinity Plan Phase Contrast | 100× | 1.25 | 0.2 | Oil |
Contrast Options
Phase Contrast Kits
Phase contrast objectives are available in 10×, 20×, 40× and 100× with sliding condenser inserts. The sliders offer a cost effective alternative to the dedicated phase condensers offered by other manufacturers. The kit also includes a centering telescope.
LED Two Band Fluorescence
The fluorescence illumination module offers 3W LED illumination with B, G, U, V (which can be combined) filters. The LED illuminator is permanently centred, has a long 5,000 hour life, and has no warm up or down periods.
Dark Field
A dark field slider is also available.
Technical Specifications
| NE620 | |
|---|---|
| Optical System | Infinity colour corrected |
| Eyepieces | 10x/22mm |
| Viewing Head | 30° Inclined Seidentopf Trinocular Viewing Head Inter-pupillary 47-78mm Splitting ratio 5:5 |
| Standard Objectives | NIS60 Infinity Plan Achromat Objectives 4×, 10×, 40×, 100× oil or 100× water |
| Nosepiece | Coded backward quintuple |
| Stage | Synchronous belt stage Size: 230 × 150mm Range: 78 × 54mm |
| Condensor | NA 1.25 Abbe Condensor |
| Phase Contrast Accessories | 10×, 20×, 40× and 100× oil objectives 10× – 40× slider, 100× slider Phase Contrast centering telescope |
| Dark field | Bright field / Dark field slider |
| Focus | Co-axial coarse and fine control Coarse range: 37.7mm Fine range: 0.2mm |
| Illumination | 3W LED with automatic switching and sleep timer |
| Fluorescence | 3W LED two wave range B, G, U, V filters |
| C-mount adaptors | 1.0× and 0.5× |
| Accessories | Simple polarisation kit (optional), green filter (standard) |