| Model | BA310E Binocular | BA310E Trinocular |
| Observation tube | Binocular head, Siedentopf type, 360° swiveling | Trinocular head, Siedentopf type, 360° swiveling |
| Optical system | Colour Corrected Infinity Optical System (CCIS®) | Colour Corrected Infinity Optical System (CCIS®) |
| Condenser | Focusable and centerable Abbe condenser N.A. 0.90/1.25 with slot for contrast sliders | Focusable and centerable Abbe condenser N.A. 0.90/1.25 with slot for contrast sliders |
| Darkfield | Optional slider/turret | Optional slider/turret |
| Diaphragm | Iris diaphragm | Iris diaphragm |
| Diopter adjustment | On both eyepieces, +/- 5 diopter | On both eyepieces, +/- 5 diopter |
| Eyepieces | Widefield N-WF10X/20mm with diopter adjustment | Widefield N-WF10X/20mm with diopter adjustment |
| Filter holder | On top of the illuminator with fixing cap | On top of the illuminator with fixing cap |
| Fine focus precision | 2µm | 2µm |
| Fluorescence | Optional LED | Optional LED |
| Focus mechanism | Coaxial coarse and fine focusing system with tension adjustment | Coaxial coarse and fine focusing system with tension adjustment |
| Focusing stroke | 20mm | 20mm |
| Illumination interchangeability | Quartz halogen 6V/30W or LED 3W | Quartz halogen 6V/30W or LED 3W |
| Inclination | 30° inclined, 360° rotating | 30° inclined, 360° rotating |
| Interpupillary distance | 48-75mm | 48-75mm |
| Nosepiece | Reversed quintuple | Reversed quintuple |
| Objective classification | CCIS® EC Plan Achromatic, DIN | CCIS® EC Plan Achromatic, DIN |
| Objective mounting thread | W 4/5"x1/36" (RMS standard) | W 4/5"x1/36" (RMS standard) |
| Objectives | 4X/0.10 (WD 15.9mm), 10X/0.25 (WD 17.4mm), 40X/0.65/S (WD 0.5mm), 100X/1.25/S-Oil (WD 0.15mm) | 4X/0.10 (WD 15.9mm), 10X/0.25 (WD 17.4mm), 40X/0.65/S (WD 0.5mm), 100X/1.25/S-Oil (WD 0.15mm) |
| Phase contrast | Optional slider/turret | Optional slider/turret |
| Polarization | Optional add-on | Optional add-on |
| Stage | Mechanical stage with built-in low position rackless coaxial stage control with tension adjustment and sample holder | Mechanical stage with built-in low position rackless coaxial stage control with tension adjustment and sample holder |
| Stage size | 180x170mm | 180x170mm |
| Stand type | Upright | Upright |
| Standard contrast technique | Brightfield | Brightfield |
| Transmitted illumination | Koehler Quartz halogen 6V/30W with intensity control | Koehler Quartz halogen 6V/30W with intensity control |
| Travel range X&Y | 80x55mm | 80x55mm |
| Upper limit stop | Upper limit stop preset but adjustable | Upper limit stop preset but adjustable |
| Transformer | Internal | Internal |
| Power supply | 100-240V (CE) | 100-240V (CE) |
| Accessories included | Dust cover, power cord, Allen key, immersion oil (5ml), blue filter, spare fuse, cord hanger, thumb screw | Dust cover, power cord, Allen key, immersion oil (5ml), blue filter, spare fuse, cord hanger, thumb screw |
| Dimensions LxWxH | 400x220x400mm | 400x220x400mm |
| Weight Net | 8.6kg | 8.6kg |
