What do the two scanners share and what sets them apart?

Two beautiful and powerful scanners making the best professional diagnosis available for all life. What’s the difference? Here is what makes each of the Grundium Ocus® series scanners the most practical in their respective fields.

When launched in 2018, the Grundium Ocus brought the world of digital pathology a new alternative to the big multislide scanners. Unlike big scanners, which are the size ranging from an oven to a refrigerator, cost an arm and a leg, and take ages to set up and train the staff to use them, the Ocus are small enough to be portable, they’re easy to use, affordable and very practical in daily use – whether for primary examination, second opinion/collaboration, education, or a digital imaging component in a network of labs.

The scanners are both optimized for a specific task, catering to different needs in high-resolution digital imaging. This is what sets the two scanners apart:


The Ocus®20 is optimized for fast and effortless scanning. It comes with a high depth-of-field and Z-stacking, producing sharp images even from less than perfect samples. The Ocus®20 thrives in intra-operational frozen section and ROSE applications.
#speed #highDOF #histology

OCUS®20 vs OCUS®40
Numerical aperture: Ocus®20: 0.4 | Ocus®40: 0.75
Resolution, microscope: Ocus®20: 0.50 μm/pix | Ocus®40: 0.25 μm/pix
Depth of field: Ocus®20: 5 μm | Ocus®40: 1 μm
Image sensor: Ocus®20: 12Mpx | Ocus®40: 12Mpx


The Ocus®40 is designed for versatility and applications requiring very high image resolution. It is particularly suitable for integration as the imaging component in systems of multiple labs with centralized examination of samples.\

This is what the two scanners both share:


The Grundium Ocus scanners work like a webserver. A scanned slide can easily be viewed online by logging in on any computer with a web browser (no dedicated computer or software required). The Remote Live View feature also lends itself to making rapid onsite evaluation. By sharing the controls of the scanner, a group of experts can all simultaneously collaborate on the same slide placed in one microscope scanner. Not only does this make educational purposes and group work exceptionally simple, but it’s so easy a second opinion is just a click away.


The Ocus scanners are designed and built by the same engineers who created the Nokia camera phones. That same expertise in high-precision imaging is now applied to digital microscopy with a patented imaging system that makes the sharpest images in the business. Read more about our patents on how images are focused, and how they are stitched.


The Ocus scanners are built compact, constructed with a device hardware architecture adapted from the world of mobile phones. This means the Ocus scanners are significantly more affordable than large multislide scanners, or even most secondary single slide scanners.


Unlike large multislide scanners, which may require a room of their own with a calibrated, perfectly level table to rest on, the Ocus® scanners are about the size of a volleyball: 20 x 20 20 cm (ca. 8” x 8” x 8”). They are small enough to find a spot in any lab or any desk. The Grundium Ocus® scanners travel anywhere in a case small enough for aircraft cabins (available for order separately).


The user interface is so intuitive that anybody can be trained to use the Ocus in less than 15 minutes. This small scanner is very robust and it doesn’t even require a perfectly level desk to stand on. Many hospitals use an Ocus on a cart with a powerbank and a tablet computer, wheeling it to wherever it is needed at the time!

Once a sample is prepared in a glass slide it’s a quick job to examine it:

  1. Insert slide
  2. Set up scan (10 seconds)
  3. Scan the slide (3 minutes)
  4. View the image file on your computer


The scanners’ user interface is fully web-based, which means they can be operated on any device with internet connection and a web browser (desktop, laptop, tablet, phone), no apps or extra software needed. Grundium supports all major browsers. The scanners are particularly intuitive to use on a touchscreen device, like a tablet, where zooming in or out and moving the object happen at the touch of the fingertips. Where an ethernet connection isn’t available, both Ocus® scanners can connect to a WLAN/Wi-Fi network or a mobile hotspot.

The Grundium Ocus personal slide scanners make digital microscopy simple and fast. An excellent quality-to-price ratio makes an Ocus scanner attainable to practically any healthcare establishment since a heavy procurement process is usually not needed. The Grundium Ocus® scanners truly have what it takes to be the staple equipment of any hospital, clinic and school, a fantastic remote tool in every location of a pathology service provider, and even on every pathologist’s desk as a personal scanner.

If you want to make sharp and easy remote imaging easier for yourself or your team, please contact us here.


Davide D'Incau

Sales Director


About Grundium

A global leader in advanced imaging technology, Grundium makes digital pathology and best professional diagnosis available for all life – whether human, animal, plant or other. This is achieved by doing something that nobody else can: applying state-of-the-art mobile technology in digital pathology. Established in 2015 by ex-Nokia engineers, the Tampere-based company is democratizing digital pathology with the Ocus® microscope scanners. The cutting-edge imaging solutions are based on over 20 years of experience in optics, sensors and beautiful high-precision devices. Grundium serves various industries and businesses enhancing quality and processes, protecting human life and safeguarding a clean environment.
We have excellent images with the Ocus and I couldn’t be happier to have this little helper on my desk here. I use it mainly as a microscope tbh but of course, scan my slides as well. It has really helped me so much.
— Julia Cara Thierauf
Massachusetts General Hospital 
Research Fellow in Pathology (EXT)

Book a live demo

See the OCUS® portable digital microscope scanner in action – request your free personal online live demo now. A Grundium expert will contact you personally to schedule a suitable 30-minute demo time for you. In the demo we will answer all your questions about which Ocus® scanner fits your needs best, we will talk pricing, share stories about how others are using the scanners, and help you fast forward the digital pathology experience in your lab.

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