Specifications:
The OPTIKA Model B-153 is a monocular educational microscope featuring a double layer stage and four achromatic objectives (4x, 10x, 40x, 60x). It is equipped with 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 microscope can be powered externally (100/240Vac, 50/60Hz, 6Vdc 2.5A) or via an internal NiMH rechargeable battery, providing up to 15 hours of use at medium light intensity.

Observation Modes:
The microscope supports brightfield observation.

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:
The double layer mechanical sliding stage measures 125x116mm with an X-Y movement range of 76x30mm. It includes a specimen holder for one slide and a vernier scale with 0.1mm accuracy.

Nosepiece:
The microscope features a quadruple revolving nosepiece with ball bearing rotation.

Head:
The monocular observation head is inclined at 30° and rotatable 360°.

Eyepieces:
It comes with widefield eyepieces WF10X/18 with a field number of 18mm.

Objectives:
The achromatic objectives include: 4X (A.N. 0.10, W.D. 18mm), 10X (A.N. 0.25, W.D. 7mm), 40X (A.N. 0.65, W.D. 0.53mm), and 60X (A.N. 0.85, W.D. 0.45mm). All objectives are treated with an anti-fungus treatment.

Condenser:
The Abbe condenser has an N.A. of 1.2 and is precentered.

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

Accessories:
An instruction manual and dust cover are included.

Model and Typology:
The B-153R is an educational microscope designed for routine applications, featuring a dye-cast frame for high stability and ergonomics in transmitted light observation.