Optek Bino Student

The Optek Bino Student is made for examining specimens in transmitted and reflected light. It uses a number of modern features:

* a binocular head
* upper and lower illumination with adjustable intensity, so both transparent and opaque specimens can be viewed
* built-in rechargeable batteries which, with the LED illuminator, allow work without mains power — in the field or in a school laboratory
* an ergonomic handle with a non-slip coating
* a two-layer stage and coaxial coarse/fine focus knobs (graduated)
* until now all of these belonged to expensive laboratory microscopes
* the equipment, the ergonomics, the portability and above all the price make this decidedly the best offer on the market
* an upper stage position lock, which stops the slide being crushed
* continuously adjustable light intensity

Technical data:
- binocular head with a 45° inclined view and adjustable interpupillary distance (55–75)
- achromatic objectives: 4x, 10x, 40x (S) (spring-loaded), 100x (S)(O) (spring-loaded, oil immersion)
- eyepieces: wide-field WF10x/18 mm with pointers
- magnification range in the standard configuration: 40x–1000x
- coaxial coarse and fine focus knobs on both sides (coarse: 22 mm, fine: 1.3 mm)
- four-position nosepiece
- LED illumination of the specimen, plus upper illumination for opaque specimens
- Abbe condenser N.A. 1.25 with an iris diaphragm, a filter holder and height adjustment
- a flat two-layer stage, 105 × 95 mm, graduated with a vernier scale and fitted with clips, moving the slide smoothly in X and Y by a coaxial knob placed comfortably beneath it — all of it in a polystyrene insert inside a carton
- immersion oil (cedar), a blue filter and a dust cover are included
- built-in rechargeable batteries, so it works away from the mains
- height: 310 mm
- base: 180 × 130 mm