National Optical Model DC4-156-S Compound Digital Microscope System

National Optical Model DC4-156-S Compound Digital Microscope System

Great Value
National Optical Model DC4-156-S Compound Digital Microscope System
Click to enlarge image(s)
National Optical Model DC4-156-S, Compound Digital Microscope Digital Signal only (to computer) 3.0 Mega Pixel
Din 4x, 10x, 40xR, 100x oil
12v / 20 watt halogen illumination
1.25 N.A. Abbe condenser
Mechanical stage (slide holder)
Featuring the same precision optics and rugged construction of Model DC2-155, this microscope is enhanced with the addition of 100x oil immersion lens, 1.25 N.A. Abbe condenser, and professional quality built-in mechanical specimen holder with coaxial controls. A truly full-featured microscope with 3.0 Mega Pixel built-in camera, for optimum image quality and detail.


Widefield 10x eyepiece with pointer. Accepts optional #965-160 eyepiece reticle.
45° inclined monocular viewing head.
All are achromatic, parfocalled, parcentered and color-coded.
4-hole objective turret, reverse position, ball-bearing mounted for smooth, precise changes in magnification.

Built-in 12v 20 watt halogen with rheostat intensity control.
Base mounted on/off switch, heavy-duty 3-wire grounded electrical system and plug.

Separate low position coarse and fine focusing controls.
Stage moves up or down, eyepiece and body remain fixed.
Slip clutch prevents damage to focusing system.
Tension adjustment eliminates stage drift.
Safety rack stop prevents damage to slides and objective lenses.

Large 135mm x 135mm (5-1/4 in. x 5-1/4 in.) stage, with professional quality, low profile mechanical specimen holder with low-position coaxial x-y controls.
1.25 N.A. Abbe condenser with spiral focusing mount, iris diaphragm, swing-out filter holder, blue filter supplied.

Rugged cast metal, gray enamel finish.
Height 380mm (15 in.). Net wt. 4.7 kgs (10.4 lbs).

Molded styrofoam container with instruction brochure and vinyl dustcover.
Individual: Ship wt. 7.7 kgs (17 lbs), Dimensions 550x375x375mm (22x15x15 in.)


Lifetime limited warranty, excluding bulb and cords.

THE CAMERA - built-in

This model permits hook-up to computer with supplied USB cable. Easy-to-use software for capturing microscope images, labeling, measuring, storing, and e-mailing. Requires a PC with Windows 98 or above.


USB 2.0 Port (digital signal for use with computer only)
Image device 1/2 in. CMOS Chips
Effective pixels 1280 x 1024
Framed resolution 1280 x 1024 pixels
Electronic shutter 10 - 30 frames/sec (determined by individual CPU's)
Sync System N/A
Audio output Transmission across Image 2000 direct into memory of PC
S/N Ratio N/A
Gamma Characteristic N/A
White balance Auto white balance
B.L.C. Back light compensation (auto)
Minimum illumination 3 LUX
Data transfer 7.5 MB/second
Color Image Take-up time below one second
Color depth 24 bit (16.7 million colors)
Electronic shutter --
Power supply 5v self powered from computer USB 2.0
Consumption 250mA
Data format BMP, JPG, MIG (for recording)

System Requirements

Operating System Windows 2000 or above.
Computer Requirements Intel Pentium, CPU 1 Ghz or above, RAM 256 MB or above, Hard disk 200 MB or above, CD-ROM drive, USB 2.0 plug, 32 MB video card, sound card, speaker and microphone for video and audio recording, a modem for e-mail, video conference and video mail.
Immediate Printout On printer
Position and size of image on monitor Freely definable
Menu on monitor Pull-down menus for opening, storing, printing, print preview, regulator for brightness, color, gamma correction. Icons for recording, image interpolation, switching between large and small image, image quality, automatic and manual white balance.
Image data Automatic reference number, date, time
Interactive adjustment Color, brightness, contrast
Import of stored data Possible

Environmental conditions

Operating temperature -50°F to +150°F
Storage temperature -50°F to +175°F
Relative humidity 40% to 95%
1-Year Limited Warranty
90-day limited warranty.

Copyright © Edward Nightingale, Fort Myers, Florida