
The Grundium Ocus® 20 sets new standards in digital pathology scanning, designed for speed and efficiency in histology applications.
With a focus on scan speed over higher magnification, the Ocus® 20 is ideal for intraoperative frozen section procedures, allowing pathologists to make quick, reliable diagnoses.
Combining high precision with ease of use, the Ocus® 20 offers an optimal blend of quality and affordability for labs where higher magnification isn’t necessary.

The Ocus® 40, with its powerful 40x magnification, delivers unmatched detail in every scan, making it ideal for cytology and other applications that require high-resolution imaging. For those who need the best image quality, the Ocus® 40 brings the microscopic world into sharp focus.
Engineered for accessibility and performance, the Ocus® 40 combines quality, affordability, and user-friendliness, unlocking new possibilities in digital pathology.

The Ocus® M series devices are Grundium’s most advanced digital pathology scanners, built for high-performance labs. With a larger slide capacity for extended walkaway scanning, and a removable slide tray for easy handling, it streamlines workflows and reduces operator time.
The intuitive, feature-rich interface makes the Ocus® M ideal for cytology and other high-magnification applications, delivering outstanding image quality and flexibility for digital pathology.
The Ocus M comes in two different magnification variants; Ocus M 20 and Ocus M 40.
| Specification | Single slideOcus®20 | Single slideOcus®40 | Four slidesOcus®M20 | Four slidesOcus®M40 |
|---|---|---|---|---|
| Best suited to | Frozen sections, intraoperative work, fast-turnaround histology | Cytology, fine needle aspirates, IHC, tumour grading | Frozen sections, intraoperative work, fast-turnaround histology | Cytology, fine needle aspirates, IHC, tumour grading |
| Price | Request a quote | Request a quote | Request a quote | Request a quote |
| Ongoing licence fees | None | None | None | None |
| Slides per load | 1 | 1 | 4 standard, or 2 large | 4 standard, or 2 large |
| Magnification | 20x | 40x | 20x | 40x |
| Numerical aperture | 0.40 | 0.75 | 0.40 | 0.75 |
| Resolution | 0.50 µm/pixel | 0.25 µm/pixel | 0.50 µm/pixel | 0.25 µm/pixel |
| Depth of field | 5 µm | 1 µm | 4.2 µm | 1.3 µm |
| Z-stacking | Up to 5 layers | Up to 5 layers | Up to 7 layers, 1 µm steps | Up to 7 layers, 0.50 µm steps |
| Scan time, 15×15 mm | ~1 minute | ~3 minutes | ~1 minute | ~3 minutes |
| Onboard storage | 500 GB | 500 GB | 2 TB | 2 TB |
| Scans held, 2×2 cm slides | 500–600 | 250–300 | ~2000 | ~1000 |
| Simultaneous viewers | Up to 8 | Up to 8 | Up to 8 | Up to 8 |
| Footprint | 7 × 7 × 7.5 in 18 × 18 × 19 cm | 7 × 7 × 7.5 in 18 × 18 × 19 cm | 8 × 10.3 × 9.2 in 20 × 26 × 24 cm | 8 × 10.3 × 9.2 in 20 × 26 × 24 cm |
| Weight | 7.7 lbs / 3.5 kg | 7.7 lbs / 3.5 kg | 12.9 lbs / 5.9 kg | 12.9 lbs / 5.9 kg |
| Get a quoteOcus®20 details | Get a quoteOcus®40 details | Get a quoteM series details | Get a quoteM series details |
All Ocus® scanners are browser-based, require no dedicated workstation, and carry no ongoing licence fees. Not sure which model fits your workflow? Book a 30-minute demo and we will talk it through.



Discover how Grundium’s digital pathology scanners can enhance your workflow.
Request a demo or send us a message below.
When selecting a microscope slide scanner for pathology workflows, important considerations include image quality, magnification, scanning speed, workflow compatibility, slide capacity, supported file formats, and ease of use. The Grundium Ocus® series provides flexible, browser-based digital pathology solutions ranging from compact single-slide systems to four-slide Ocus® M Series scanners for workflows that benefit from additional walk-away capacity.
Yes. The Grundium Ocus® series supports whole slide imaging by digitizing microscope slides into high-resolution digital images that can be viewed, navigated, exported, and shared. This supports digital pathology workflows across applicable clinical, research, education, and collaborative review environments.
Ocus® digital pathology scanners enable digitized slides to be viewed, navigated, and shared remotely through a web browser without additional viewing software. This supports remote consultations, second opinions, multi-site collaboration, and flexible pathology workflows while helping reduce the need to transport physical slides between locations.
The Ocus®20 and Ocus®40 are compact single-slide digital pathology scanners designed for efficient and accessible slide digitization. The Ocus®20 offers 20x magnification and fast scanning for histology-oriented workflows, including frozen section and intraoperative consultation use cases where speed is important. The Ocus®40 offers 40x magnification for workflows that require higher-resolution imaging, including cytology and detailed cellular review.
The Ocus® M Series adds four-slide capacity and a removable slide tray for laboratories that need additional walk-away scanning capacity or routinely handle multiple slides per case. It maintains the compact, browser-based design philosophy of the Ocus® platform while adding multi-slide workflow features. The Ocus M series is available in both 20x and 40x magnification.
The Ocus®40 and Ocus® M 40 are designed for workflows that require high-resolution digital imaging and detailed cellular visualization. With 40x magnification and 0.25 µm/pixel scan resolution, they are well suited for cytology and other applications where fine detail is important for review, collaboration, and digital pathology workflows.
The Ocus®20 is designed for fast and efficient histology workflows where rapid access to digital slides is important. Its 20x magnification, 0.50 µm/pixel scan resolution, and approximately one-minute scan time for a 15 × 15 mm area make it well suited for histology-oriented applications such as frozen sections and intraoperative consultation workflows where higher magnification is not always required.
