























£2,837.83*
£9.99
- Light Brightness 4,200 Lumen
- Diagonal 100"-130"
- Resolution 3840 x 2160 4K UHD
- Aspect Ratio 16:9

Product information
Optoma ZK420UST 4K UHD ultra-short-throw projector for professional presentations
If you are looking for a high-performance and reliable projection solution for your conference rooms or classrooms, it is advisable to opt for state-of-the-art laser technology. Choosing the Optoma ZK420UST means you can effectively overcome everyday challenges such as distracting shadows and content that is difficult to read in bright environments. This ultra-short-throw projector combines exceptional brightness with intelligent control options, ensuring your presentations always look their best. Discover the features that are right for your professional audiovisual equipment.
The benefits of the Optoma ZK420UST at a glance:
- Ultra-short-throw lens for shadow-free images: Project a 100-inch image from a distance of less than half a metre.
- True 4K UHD resolution for razor-sharp details: Present complex graphics and text with absolute clarity thanks to 8.3 million pixels.
- High brightness of 4,200 lumens: Ensure content is perfectly legible even in meeting rooms lit by daylight.
- Centralised IT management via OMS Cloud: Monitor and control the projector conveniently from a distance via your network.
Impressive image quality thanks to advanced laser technology and 4K UHD
Experience a visual display that makes no compromises, even in brightly lit conference rooms. The Optoma ZK420UST utilises a high-quality laser light source to produce an impressive brightness of 4,200 lumens. Combined with True 4K UHD resolution, the device projects 8.3 million pixels onto the projection screen. This means text, tables and graphics are displayed with four times the detail compared to conventional Full HD models. In addition, the projector supports HDR10 and Hybrid Log Gamma (HLG), which enhance contrast and reproduce colours faithfully. For you, this combination means you no longer need to darken rooms for presentations. The audience can take notes with ease whilst clearly seeing the projected content at the same time. The high light output and precise resolution ensure consistently professional and clear presentation results in your day-to-day work.

Shadow-free projections thanks to a precise ultra-short-throw lens
Benefit from flexible room layout that puts the presenter centre stage. The built-in ultra-short-throw lens enables a 100-inch image to be projected from a distance of less than 0.5 metres. This proximity to the projection screen effectively prevents people from walking through the light beam during the presentation and casting distracting shadows onto the projection screen. Furthermore, the presenter is not dazzled by the projector’s light. For more complex room layouts, the device offers horizontal keystone correction as well as a four-corner adjustment function. This allows for precise compensation for uneven walls or unusual placements. You therefore obtain a geometrically accurate image in any environment. In this way, you make your presentations significantly more comfortable for the speaker and direct the audience’s full attention to your content.
Reliable continuous operation and seamless network control
Rely on media technology that integrates seamlessly into your existing IT infrastructure. The projector is compatible with the Optoma Management Suite (OMS), enabling IT managers to monitor and manage the device remotely. This greatly simplifies day-to-day technical support. Another key advantage for installations in large rooms is the HDBaseT 3.0 connection. This allows you to transmit uncompressed video and audio signals, as well as control commands, via a single CAT cable over distances of up to 100 metres without any signal loss. The projector is also designed for 24/7 operation and features an automatic shut-off function to switch it off as scheduled when not in use. The proven laser light source, with a lifespan of up to 30,000 hours, significantly reduces maintenance requirements compared to traditional lamp-based projectors. This frees up valuable time for your IT department to focus on other core tasks.
Why the Optoma ZK420UST is the ideal choice for your educational institutions and meeting rooms
With its ultra-short-throw lens and precise 4K UHD resolution, the Optoma ZK420UST addresses key challenges in modern presentation environments. You’ll benefit from shadow-free presentations, excellent readability in brightly lit rooms, and comprehensive, straightforward network control via HDBaseT and the OMS Cloud. These well-thought-out features make the device a valuable and reliable addition for demanding professional use. We’d be happy to support you as you set up your new audiovisual equipment. Please contact us for personalised advice by telephone or email so that, together, we can find the perfect solution for your specific requirements.
Technical data
Projection distance calculator
Contact our experts for help!
Image size:
Format
Format
Product safety
| Person responsible for the EU |
|---|
| Optoma Deutschland GmbH |
| Am Nordpark 3 |
| 41069 Mönchengladbach |
| Germany |
| info@optoma.de |