Model DC3-420TH

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Model DC3-420TH

The convenience and versatility of viewing large picture at 10x magnification, then zooming continuously all the way to close-up detail at 40x magnification. Upright, unreversed 3-dimensional image remains in focus throughout zoom range. Superb optical clarity and reliable mechanical engineering assure years of top performance. This microscope is fully functional, independent of camera application.

General microscope information
Compare to other microscopes


  • Paired widefield 10x eyepieces are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm.
  • Achromatic, color corrected lenses.
  • Continuous magnification from 10x thru 40x. See specification chart for full range available with use of optional auxiliary lenses.


  • Top light is 12v 15 watt halogen, bi-pin with directional beam and rheostat control.
  • Bottom light is 12V 10 watt halogen, bi-pin.
  • Base mounted light controls permit choice of top only, bottom only, or dual illumination.
  • 12VDC power converted operates on 100v-240v 50H/60H current, without need of additional transformer.
  • 2.5 amp time delay fuse.


  • Large dual focusing knobs with slip clutch to prevent damage to mechanism.
  • Tension adjustment eliminates focus "drift”.


  • Large 165mm wide x 220mm deep stage surface.
  • Two 80mm stage plates (frosted glass and reversible black/white plastic contrast plates).
  • Blue filter for transmitted light.
  • Locked on stage clips.


  • Professional, all-metal frame, gray enamel finish.
  • Heavy-duty post mount with locking support collar, permits up or down adjustment of viewing head to accommodate different sized objects on stage.
  • Height: 330mm (13 in.) extends to 433mm (17 in.) for larger objects.
  • Net wt. 5.1 kgs (11.2 lbs)


  • Molded styrofoam container with rubber eyeshields, vinyl dustcover and instruction manual.
  • Individual: Ship wt. 8.2 (18 lbs), Dimensions 450x425x275mm (18x17x11 in.)
  • Master carton pack 1 each: Ship wt. 8.2 kgs (18 lbs), Dimensions 450x425x275mm (18x17x11 in.)


Click Here For DC3-420TH Supplemental Instruction Information


This model permits separate or simultaneous hook-up to computer and video monitor, or to projector, with supplied USB, S and RCA cables. Easy-to-use, Motic Images  software for capturing, labeling, measuring, and storing images, plus a host of other exciting options. Requires a computer with Windows XP or above. Mac OSX Compatible.

(NTSC, USB & RCA ports, digital and analog signals for use with computer, video, projector)

Technical Data

  NTSC (analog signal) USB (digital sig.)
Image device 1/3 in. interline CCD 1/3 in. interline CCD
Effective pixels (H) 768 x (V) 494 (H) 712 x (V) 582
Framed resolution 480 TV lines 320 x 240 pixels
Electronic shutter 525 lines, 60 field/sec 30 frames/sec
Sync System Internal Sync N/A
Audio output Transmission across Image 2000 direct into memory of PC Same
S/N Ratio More than 48dB (AGC off) N/A
Gamma Characteristic 0.45 N/A
White balance Auto white balance Same
B.L.C. Back light compensation (auto) Same
Minimum illumination 0.1 Lux (F:2.0) 0.1 Lux (F:2.0)
Data transfer 7.5 MB/second Same
Color Image Take-up time below one second Same
Color depth 24 bit (16.7 million colors) Same
Electronic shutter 1/60-1/100,000 sec -
Power supply 12v +/- 10% DC Self powered
Consumption 180mA 280mA
Data format BMP, JPG, MIG (for recording) Same


System Requirements

Operating System Windows XP or above, Mac OSX
Computer Requirements 1 Ghz processor, Video card: 128 MB, RAM 512 MB or above. Hard Disk 500 MB or above.
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 +120°F Same
Storage temperature -70°F to +140°F  
Relative humidity 40% to 95%  



(For quantity discounts, contact Donald J Ruark

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