Optika B-293 Trinocular Brightfield Microscope for Routine Laboratory Use

The Optika B-293 is a trinocular upright microscope built on the B-290 series brightfield platform, with a third port for camera attachment.

All main controls sit close together, so the microscope can be operated with minimal hand movement during long sessions.

N-PLAN Optics

The B-293 uses N-PLAN plan achromatic objectives at 4x, 10x, 40x, and 100x oil, giving 40x to 1000x total magnification through 10x/20 eyepieces.

• Quadruple reversed nosepiece on ball bearings
• Anti-fungus treated optics

Trinocular Head with Camera Port

The trinocular Siedentopf head splits light 50/50 between the eyepieces and the photo port, with an interpupillary range of 55 to 75 mm.

• 30 degrees inclined, 360 degrees rotating
• Diopter adjustment on both tubes

Rackless Double-Layer Stage

The double-layer stage moves 75 x 33 mm on a belt-driven, rackless mechanism, with a vernier scale accurate to 0.1 mm on both axes.

• Anti-scratch painted surface
• Centerable Abbe condenser, N.A. 0.9/1.25

X-LED3 Illumination

Illumination comes from a 3.6 W X-LED3 source with manual brightness control and a fixed color temperature of 6,300 K, rated at more than 65,000 hours of lifetime.

• External power supply, 100-240 Vac input, multi-plug EU/UK/US
• 6 W maximum power draw

Ideal Applications

The B-293 suits routine transmitted-light observation where image capture through a third port adds value.

• Routine biology and histology teaching with documentation
• General laboratory brightfield observation
• Training environments needing shared image capture
• Standard glass slide work in schools and colleges

Choose the B-293 when:

• You need a camera port in addition to binocular viewing
• Your work does not require infinity-corrected optics
• You want the same N-PLAN optics as the B-292 with trinocular output
• You may add darkfield or phase contrast sliders later

Optika Value Proposition

Optika has manufactured educational and laboratory microscopes for more than 45 years and sells through dealers in more than 150 countries. The B-293 carries the same X-LED3 illumination used across the Optika range, backed by a 10-year warranty on mechanical and optical parts and a lifetime warranty on the X-LED light source.