OPTIKA B-290TB Digital Microscope with Touch Screen 8" Tablet - 3.14 Mega Pixels

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This series incorporates all the experience gathered by OPTIKA. Microscopes in the field of light microscopy, adapted specifically for routine laboratory brightfield applications. These microscopes are suitable for routine microscopy and have an ergonomic design for comfortable long-term use. Optika is glad to introduce a new member of this key series: The B-290TB.


  • You can rotate the tablet on the microscope in all directions, so it can be used as a microscope demonstration
  • Simultaneous data and power feed makes it ideal for long-term operation
  • Tablet PC can be easily detached from the microscope and used as a laptop

Optical system & objectives: The optical system has been developed for demanding users; it consists of high quality components which guarantee an high image contrast and an excellent optical resolution. The optical components have been designed and treated with special techniques to prevent the formation of moulds and fungus.

Stand: The stand has a modern and ergonomic design. It is easy to move the microscope thanks to the large opening behind the revolving nosepiece, to be used as a handle. The opening allows the user to see clearly the objectives and the samples, as requested in discussion groups.

Mechanics: The moving parts are made by means of machine tools with computerized numerical control. In this way we have reduced the manufacturing tolerance and increasing the reliability of the instrument. The strict controls on materials and production processes are optimized through the procedures established by ISO 9001:2008 quality system.

Illumination: X-LED type with white LED; light intensity control using a knob on left side of the frame. LED power 3.6W, comparable to a 50W halogen bulb.


Microscope Specifications
Viewing Head Binocular Digital observation head, inclined 30° and rotatable 360°. Diopter adjustment on left eyepieces. Interpupillary adjustment 48-75 mm.
Eyepieces Wide Field 10x/20mm (accepts 21mm micrometer)
Nosepiece Quadruple revolving nosepiece, rotation on ball bearings.
Objectives N-PLAN 4x, 10x, 40x, 100x (oil/water)
View Optika Objective Brochure
Stage Double layer with mechanical sliding stage, size 150 x 139mm, X-Y movement range 75 x 53mm, specimen holder for one slide. X-axis rackless. Vernier scale on X-Y axes, accuracy 0.1mm.
Condenser Abbe N.A. 1.25, iris diaphragm, focusable and centrable
Focusing System Coaxial coarse and fine focusing mechanism (graduated, 0.002mm) with upper stop, to prevent the contact between objective and specimen. Adjustable tension of coarse focusing knob.
Illumination Light source X-LED type with white LED; light intensity control using a knob on left side of the frame.
LED power 3.6W, comparable to a 50W halogen bulb.
Color temperature: 6300K.
LED average lifetime approx.: 50.000h.
Voltage: external power supply 100/240Vac, 50/60Hz, output: 6Vdc 1A.
Max. required power: 7W.
Warranty Ten (10) Years mechanical and optical parts
Two (2) Years electrical
Camera Specifications
Digital camera resolution 3.14 MegaPixels
Analog camera resolution NO
Signal output USB 2.0
Audio Signal NO
Sensor Size 1/2.5"
Sensor technology CMOS
Image format 4/3
Full Image size 2048 x 1536
Pixel size 2.2 x 2.2 micron
Frame rate full resolution 5 frames/sec
Frame rate other resolutions 8 FPS (1280 x 1024), 30FPS (640 x 480)
Sensitivity 0.53 V/Lux-second (550 nm)
Signal / noise ratio 40 dB
Dynamic range 66.5 dB
Max Exposure time 1.5 sec
ADC conversion 12 BIT
Color Depth 8 BIT
On camera IR Filter 680 nm
Automatic White Balance Auto - Man
Automatic Gain Control Auto - Man
Automatic Back light control Auto - Man
Exposure control Auto - Man
Supplied Software Optika Vision Lite (full view function is also included for a wider Live Camera view)
Driver type No driver (microsoft driver)
Capture features Continuous auto exposure, image size, image capture, compressed video capture
Control parameters Brightness, gain, exposur time, colors, color enhancement.
Tablet Specifications
Model Tablet 8.9"
Operating System Windows 8.1 32-bit, Microsoft Office 365 Personal (1 year subscription)
Language Multi-languages already installed
CPU Intel® Bay trail Z3735F, Quad core
CPU speed 1.83 GHz
Graphics Card Intel® HD Graphics, LPDDR3 controller
Memory Ram 2.048 GB, LPDDR3
LCD display LED 8.9" IPS Multi Touch Screen
LCD resolution 1920 x 1200 Full HD, Active Matrix TFT Colour LCD
Storage HDD 16+16GB
Network Wireless IEEE 802.11 a/g/n
Bluetooth 4.0
Input/output ports Micro USB-B - Microphone
Micro SD card reader - Micro HDMI
Head-phone - Separated power supply input
Control Buttons Auto rotate off, volume control
Battery Technology Lithium-ion battery, 2x cell
Battery capacity 6000 mAh
Max load 10 W
Battery Life Up to 10 hours, up to 5.5 hours in continuous Camera Live View mode.
Connection to the Load Power supply 5.35 V 2A with, EuroPlug connection for 100-240 VAC, USB port with USB cable
Dimensions Thickness 9.5 mm Height 15.7 cm Width 22.0 cm
Weight 477 g
Cables included USB camera cable, OTG cable
Also included Dust cover, Immersion oil (10ml), Tension adjustment tool, Calibration slide, Touch pen


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