
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.

Ocus R brings Grundium’s focus on image quality, compact design and effortless use to high-throughput digital pathology. Its robotic platform combines up to 12 independent scanning heads working in parallel with capacity for up to 600 slides across six automated drawers.
Load-and-go automation minimizes routine user interaction, while continuous loading allows completed drawers to be reloaded without interrupting scanning. Laboratories can add scanning heads as volumes grow without increasing the instrument’s footprint. Built-in scanning-head redundancy keeps your workflow moving even when an individual head is unavailable.
| 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.
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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.
