Full Color Brightfield and Optional Phase Contrast
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The LS420 Microscope (Lumascope) provides full color brightfield imaging at low cost for a wide variety of applications. LS Microscopes visualize and capture high resolution images comparable to those from traditional, high-cost microscopes. The LS420 utilizes advanced optical engineering and a CMOS sensor to provide near diffraction-limited (theoretical maximum) resolution. Powered only by its USB computer connection, the LS420 easily records your photos, time-lapse series, and videos directly to your computer. And its compact size enables working in challenging locations, including inside incubators, biological safety cabinets, and environmental control workstations.

The LS420 is the new upgraded version in the Etaluma LS400-Series. Its deck includes the bracket for the optional Phase Contrast Accessory and also the accessible deck design.


Features and Benefits
Dog esophagus imaged by an LS400
Dog esophagus imaged by an LS400
  • Fully functioning microscope empowers users to visualize cells from slides, microplates, flasks, or dishes
  • Versatile and compact design permits use inside cell culture incubators, tissue culture hoods, and environmental workstations
  • Robust software enables time-lapse studies over seconds, minutes, hours, or days
  • Power and control via USB connection facilitates rapid set up and easy use
  • Advanced optics provide excellent resolution in ambient lighting conditions
  • Objective compatibility with standard lenses allows use of your own objectives
  • Optional Phase Contrast Accessory enhances visualization of unstained samples


The LS420 contains a high sensitivity color CMOS sensor with a 1280 x 800 pixel image.


LS420 Microscope Specifications
OpticsBrightfield only
Phase ContrastPhase contrast optional
Objective Options2.5x, 4x, 10x, 20x, 40x, 60x, and 100x(oil) magnification
Objective CompatibilitiesRMS-threaded, infinity corrected, 45 mm parfocal distance
Fluorescence FiltersN/A
CameraHigh Sensitivity Monochrome CMOS Sensor
Image FormatsJPG, BMP, TIF, GIF, or PNG
Image Size1280 x 800 pixels
Field of View1.3 x 0.8 mm with 20x objective
Video RatesUp to 8 frames/second (fps)
Manual XY Stage (optional)Sized for SBS footprint; other labware requires Labware Holders
Labware Holders (optional)Hold slides, 3 sizes Petri dishes, flasks; custom available
Computer RequirementsWindows 7, 8, 8.1, 10
Automation FriendlySDK available
Power RequirementsUSB
Dimensions23 cm W x 13 cm D x 13.5 cm H (9.1 in W x 5.1 in D x 5.3 in H)
Weight2.5 kg (5.4 lb) (without accessories)
Operating Conditions0°C - 42°C, 5% - 95% RH non-condensing
Warranty1 year parts & labor
Downloads & Links
Included with the LS420

The LS420 comes with the new standardized deck that includes both the tab for mounting the Phase Contrast Accessory and the removable insert for easy objective change. On the underside of the left end of the deck are 2 tapped holes for mounting the optional Manual XY Stage (see Optional Accessories below).

The LS420 also comes with a USB power/communication cable for connecting to a computer.

The LS420 is controlled by Lumaview 500/400 software that can be downloaded at no charge from the Etaluma website (see Resources/Downloads).

Objectives are sold separately (see Products/Objectives).


LS420 Optional Accessories
Phase Contrast Accessory LS620, LS520, LS420 (Olympus pre-centered)Enhances visualization of transparent specimens, including unstained samples
Manual XY Stage for LS620, LS600, LS520, LS420Provides ability to move SBS-dimensioned labware and Labware Holders holding other labware (see below)
Labware Holder for 35 mm Petri dishesFits inside Holder for 60 mm Petri dish or Terasaki plate to achieve SBS footprint
Labware Holder for 60 mm Petri dishes & Terasaki platesSBS outer dimensions
Labware Holder for microscope slides & 50 mm Petri dishesSBS outer dimensions
Labware Holder for 4 microscope slides in parallelSBS outer dimensions
LumaquantImage analysis software
Image-Pro PremierImage analysis software