The B3-223ASC is an excellent trinocular microscope for advanced work in biology where transparent samples are displayed by the ASC (Achromatic Super Contract) objectives with FOV20. Students can benefit from the 5-fold nosepiece with space for additional objectives and from a Full-Koehler setup.

• Observation tube: trinocular head, Siedentopf type
• Inclination: 30° inclined, 360° rotating
• Trinocular light split: 100:0 / 20:80
• Interpupillary distance: 55 - 75mm
• Diopter adjustment: on left tube, ±5 diopter
• Eyepiece: widefield WF10X/20mm
• Nosepiece: reversed quintuple
• Objective classification: ASC Achromatic Super Contrast, DIN
• Objectives: 4X/0.10 (WD 17mm), 10X/0.25 (WD 6.4mm), 40X/0.65/S (WD 0.45mm), 100X/1.25/S (WD 0.14mm)
• Objective mounting thread: W 4/5" x 1/36" (RMS standard)
• Stand type: upright
• Stage: mechanical stage with built-in low position coaxial stage control and sample holder
• Stage size: 140 x 135mm
• Travel range X&Y: 78 x 50mm
• Condenser: focusable and centerable Abbe condenser N.A. 1.25 with filter holder
• Diaphragm: iris diaphragm
• Focus mechanism: coaxial coarse and fine focusing system with tension adjustment
• Fine focus precision: 2µm
• Focusing stroke: 27mm
• Upper limit stop: upper limit stop preset but adjustable
• Filter holder: on top of the illuminator
• Transmitted illumination: Koehler halogen 12V/20W with intensity control
• Transformer: external
• Power supply:110-240V (CE)
• Accessories included: dust cover, power cord, blue, yellow and green filters Ø45, immersion oil (5ml)
• Dimensions l x w x h: 245 x 190 x 380mm
• Weight: 7kg