Specifications:
The B-151 is a monocular educational microscope designed for routine applications. It features a fixed table and comes with three achromatic objectives: 4x, 10x, and 40x. The microscope uses a white LED light source with a power of 1W and a color temperature of 6300K, offering an average lifetime of approximately 50,000 hours. The external power supply is 100/240Vac, 50/60Hz, with an output of 5Vdc 500mA.

Illumination:
The light intensity is controlled via a knob located on the left side of the frame. The microscope supports brightfield observation modes.

Focusing:
It includes a coaxial coarse and fine focusing mechanism with a graduation of 0.002mm and an upper stop to prevent contact between the objective and specimen. The tension of the coarse focusing knob is adjustable.

Stage and Nosepiece:
The plain stage measures 125x120mm. It has a quadruple revolving nosepiece that rotates on ball bearings.

Head and Eyepieces:
The monocular observation head is inclined at 30° and can rotate 360°. It is equipped with widefield eyepieces WF10X/18 with a field number of 18mm.

Objectives:
The microscope includes achromatic objectives with a mechanical tube length of 160 mm, treated with an anti-fungus treatment. The objectives are:

• Achromatic DIN 4X, A.N. 0.10, W.D. 18 mm
• Achromatic DIN 10X, A.N. 0.25, W.D. 7 mm
• Achromatic DIN 40X, A.N. 0.65, W.D. 0.53 mm

Condenser:
It features an Abbe condenser with N.A. 0.65, which is precentered.

Dimensions and Weight:
The microscope has dimensions of 350 mm in height, 170 mm in width, and 210 mm in depth, with a weight of 4 kg.

Accessories:
The microscope comes with an instruction manual and a dust cover.

Manufacturer:
OPTIKA Microscopes Italy, Model B-151, designed for educational purposes with a dye-cast frame for high stability and ergonomics.