The next generation of Ocus scanners: The Ocus M series

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Introducing the Ocus® M series, the innovative and advanced next step in our scanner lineup. This next-generation device leverages the familiar form factor and the compact design of previous Ocus® devices, while delivering higher throughput and advanced features.

Now available in both 40x and 20x models.
The Ocus® M40 digital pathology slide scanner, part of Grundium’s advanced digital pathology scanners designed for high throughput workflows.
Ocus M 40 (MGU-20008) and Ocus M 20 (MGU-20009) are for research use only (RUO) and not for use in diagnostic procedures. Ocus M 40 (MGU-30008) and Ocus M 20 (MGU-30009) are CE-marked under the In Vitro Diagnostic Regulation (IVDR, EU 2017/746), making them approved for use in clinical and diagnostic workflows within the European Union.

We enhanced our ALREADY best-in-class image quality and CAPTURE

The Ocus® M series delivers enhanced image quality with its optimized illumination system and superior color reproduction, ensuring a level of consistency that you can reliably trust. The improved depth of field allows you to see better cellular detail in each field of view, providing clearer and more precise images for your analysis.

Its advanced image generation pipeline not only ensures faster processing but also delivers higher-quality image data, resulting in superior pixel clarity and detail that meet all your microscopy needs.

The upgraded stitching algorithm enables earlier access to images, allowing you to view the scanned areas while the rest is still being scanned, rather than having to wait until the entire scan is complete. This means less wait times and provides efficiency in your workflow.

A sample whole slide image produced by the Ocus® M40 slide scanner pathology system, demonstrating exceptional image quality and high resolution imaging for detailed analysis.
Ocus M 40 scan sample. Click to enlarge.

Increased slide capacity,
easier slide handling

We listened to your feedback about increasing the slide capacity – and we delivered. The Ocus M series features a capacity of four slides, allowing you to do more walk-away scanning and spend less time loading slides.

Additionally, the slide tray is removable, ensuring easier slide handling and preparation. You can also access extra trays, allowing you to prepare a set of slides while another tray is being scanned, giving you more time to focus on other tasks or preparations.

Tray options

Currently, the M series slide tray supports four 3x1" glass slides. In the future, a tray supporting two 3x2" glass slides will be available.
The Ocus® M40 slide stage supporting four 1 × 3 inch glass slides, part of whole slide scanners designed for digital pathology solutions that improve workflow efficiency through high throughput slide scanning.

Available in two versions

The Ocus M Series is available in two magnification options — 20x and 40x — so you can select the version that best fits your workflow. Both deliver the same exceptional performance, image quality, and features. The only difference is the level of optical magnification and image detail.

Choose 20x when you need faster scans and a wider field of view — perfect for overviews, routine histology, and high-throughput environments. Or opt for 40x when maximum detail is critical, such as in cytology, dermatopathology, or research requiring fine structural resolution.
Ocus m20 scanner
  • Magnification: 20x
  • Scan resolution 0.50 μm / pixel
  • Numerical aperture: 0.40
  • Depth of field: 4.2 μm
  • Z-stacking: up to 7 layers (1 μm steps)
ocus m40 scanner
  • Magnification: 40x
  • Scan resolution 0.25 μm / pixel
  • Numerical aperture: 0.75
  • Depth of field: 1.3 μm
  • Z-stacking: up to 7 layers (0.25 μm steps)

Interested in a personal demo?

ALL-NEW user interface 

More organized

The Ocus M introduces a redesigned, browser-based user interface that retains the familiarity you love while enhancing functionality from the ground up. With the ability to see slides organized by case, you can streamline your workflow and manage your samples more efficiently.

Advanced Security and Control

Role-based access control and permissions add an extra layer of security, ensuring that only authorized users can access and modify critical data. This feature helps maintain the integrity of your work and safeguards sensitive information.

Customizable Scan Profiles

The Ocus® M user interface features customizable and saveable scan profiles, allowing you to tailor scan settings and color preferences to your specific needs. This enhancement not only improves your workflow but also ensures consistent results across different scans.

Control and optimize your workflow

These features give you more control over your workflow and the ability to optimize processes, making the Ocus® M a powerful tool for any lab looking to improve efficiency and accuracy in slide scanning and analysis.

Ocus M demo video

In the 9-minute video below, you’ll see the Ocus® M40 at work and discover the all-new, intuitive Ocus® M system interface designed for a seamless user experience.
We’d be happy to arrange a personal online demo for you! If you're interested, simply reach out to request a demo, and one of our experts will get in touch. The demo is free of charge and comes with no obligations.

Advanced technology redefined

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Unmatched Image Quality
The Ocus® M Series sets a new standard for digital microscopy. With its optimized illumination, superior color accuracy, enhanced depth of field, and a refined image processing pipeline, it delivers the clearest, sharpest, and most reliable images in the business. 
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Effortless to Use
The Ocus® M Series combines precision with simplicity. Scan profiles streamline setup for different samples, while role-based access control gives each user the right tools. Slide handling is quick and intuitive, and the scanner easily adapts to labs, research, or remote workflows, making high-quality scanning effortless for any user.
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Unrivaled processing power
The Ocus® M boasts a significantly upgraded processor for heightened performance, delivering cutting-edge computing power and speed to ensure swift and efficient operation for all your scanning needs.
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Vast storage capacity
With four times the slide capacity and four times the storage capability compared to Ocus® single-slide scanners, the expansive 2 terabyte storage capacity provides ample space for storing hundreds of high-resolution images and slide data.

Technical specifications / Ocus M series

Imaging mode: Brightfield

Overview camera resolution: 7 µm / pixel

Focusing: Continuous, automatic

Image sensor: 12 Mpix

Z-Stacking: Up to 7 layers

Scan time (15x15mm): ~3 minutes on Ocus M 40, ~1 minute on Ocus M 20

Barcode support: QR Code, Data Matrix

Live view: Yes

Slide capacity: Four

Slide format(s): 1" × 3" (2" × 3" available Q4 2025)

Slide requirements: Coverslip, 7 µm

Removable slide tray: Yes

Secure remote access: Yes

Image export formats: SVS, TIFF, DICOM

Internal storage: 2 Terabytes

Network connectivity: Ethernet

Export locations: Network drive, Direct download

Dimensions: 8×10.3×9.2 in / 20×26×24 cm

Weight: 12.9 lbs / 5.9 kg

Compact Ocus® M40 slide scanner dimensions showing a small footprint design suitable for modern pathology labs, allowing labs to deploy scalable solutions that support efficient workflows and improved turnaround times.

Send us a message!

Do you have a question about our devices? Wondering how the Ocus® scanners could be implemented in your workflow? Whatever it is, we are happy to hear from you!

Send us a message with the form here, and our experts will get back to you shortly!

If you need assistance with your device, please contact Grundium's customer support.

Frequently Asked Questions – Digital Pathology Slide Scanners (Ocus® M-Series)

The Ocus® M-Series is designed for digital pathology environments that require higher throughput, advanced imaging capabilities, and efficient handling of multiple slides. It supports laboratories working in diagnostics, research, and centralized scanning workflows where productivity, image quality, and reliability are essential.

The Ocus® M-Series supports four standard 1 × 3 inch glass slides in a single removable slide tray, enabling walk-away scanning and reduced manual handling. It also supports a tray for two larger 2 × 3 inch glass slides, which is useful for large-format or whole-mount workflows — for example whole-mount prostate sections, large breast resections for margin assessment, and other cases where preserving a larger continuous tissue context on a single slide is preferred.

A multi-slide pathology scanner improves digital pathology workflows by allowing multiple slides to be scanned in one run, reducing repeated manual handling and keeping scanning more predictable. With the Ocus® M-Series, removable slide trays support walk-away scanning and let staff load, unload, and prepare slides in parallel. This helps laboratories increase throughput while maintaining consistent image quality across cases.

The Ocus® M-Series is especially useful in workflows where a single case routinely includes multiple slides (for example H&E plus additional levels and IHC). In those situations, batch loading several slides at once reduces the need for the operator to swap slides between each scan, which cuts repetitive handling and keeps the scanning process more continuous.

No — the Ocus® M-Series is designed for mid-throughput digital pathology workflows. It’s a strong fit for laboratories that want a meaningful step up from single-slide scanning, with batch capacity and walk-away operation that reduce repetitive handling—especially when cases include multiple slides. At the same time, it offers this efficiency in a compact format, without the footprint and infrastructure typically associated with large high-throughput systems.