BIO4 series and BIO5 series Microscopes have pyramidal frame and combine advanced performance and ergonomic design. These microscopes mount as standard Plan achromatic objectives, Koehler illuminator, widefield eyepieces, 4 or 5 places inward tilt nosepiece, 20W or 30W halogen lamp and can accept dark field as accessory. These microscopes can also mount phase contrast equipment.
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| BIO5 series | | |
| Optical system | Infinity Corrected Optic System | |
| Head | Binocular / Trinocular | |
| | Testa 30° tilted, 360° rotable. Interpupillar distance adjustment 55-75mm, dioptric difference adjustment ± 5mm | |
| Eyepieces | Wide field WF10x/20mm | |
| Nosepiece | 4 or 5 places . Inward tilt. Rotating and locking at every objective. | |
| Objectives | 4x/0.1; 10x/0.25; 40x/0.65; 100x/1.25 (oil immersion) | |
| Stage | 210x140mm. Excursion XY: 75x50mm (division 0,1mm). Coaxial knobs on right side. | |
| Focus system | Macrometric and micrometric coaxial knobs on both sides (0,002mm). Tension and upper limit excursion adjustment | |
| Condenser | Abbe condenser, N.A. 1,25. Equipped with diaphram and filter seat. Height and centering are adjustable. | |
| Illuminator | Koehler illuminator with field diaphram.Halogen lamp 20W or 30W; with adjustable intensity. External power supply. | |
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