Optoma ZK708T Projector
Optoma ZK708T Projector
The Optoma ZK708T projector uses DLP display technology and offers a native resolution of 3840 × 2160. The laser light source provides a brightness of 7000 ANSI lm for a clear picture even in bright rooms. The device's chassis contains up to 50% PCR recycled plastics. Thanks to its robust design, it can handle continuous operation in 24/7 mode in demanding conditions. Its IP6X-certified design reliably protects the optical engine from dust and dirt ingress. The device is suitable for installation in lecture halls, museums or galleries.
3840 × 2160 4K UHD
Maximum resolution
Laser
Light source
7000 ANSI lm / 5600 ISO lm
Brightness
Lit spaces - over 3000 lm
Lighting conditions
Key features of the Optoma ZK708T projector
- 300,000:1 contrast ratio
- Compatible with 4:3, 16:9 and 16:10 aspect ratios
- Short-throw optics project from a distance of 1.3m to 7.8m
- Scalable image screen size from 31.5" to 301.8"
- Keystone correction range of ±30° on both planes
- Laser light source with a 30,000-hour lifespan
- Fan noise of 33dB(A) in ECO mode
- Two built-in speakers with 2 × 15W power
Image technology and resolution
DLP display technology renders details in native 3840 × 2160 resolution. This CTA-approved True 4K UHD resolution projects 8.3 million pixels onto the screen, delivering four times more detail than standard Full HD. The native 16:9 aspect ratio is complemented by compatibility with 4:3 and 16:10 formats. This device displays up to 1073.4 million colours for a faithful reproduction of the scene. The high pixel density creates sharp edges and smooth transitions without a visible grid.
Brightness
The high light output is complemented by a 300,000:1 contrast ratio. The device processes content in HDR10 and Hybrid Log Gamma (HLG) formats to render fine textures. Black levels retain their depth even when projecting in brightly lit rooms. The light flux delivers legible text and bright whites, making it easy to read text from a distance. The screen size image size ranges from 0.8m to 7.67m. This corresponds to a range of 31.5" to 301.8". To achieve these dimensions, the device requires a projection distance of 1.3m to 7.8m. The large-format projection covers large walls in auditoriums, classrooms or galleries. The 85% image illumination uniformity prevents dark spots from appearing on the edges of the projection surface.
Laser light source for the projector
The DuraCore laser light source uses advanced laser diode cooling. The light source has a lifespan of 30,000 hours in both normal and ECO mode, eliminating the need for frequent lamp replacement. This maintenance-free operation reduces the total cost of ownership over the lifetime of the device. The dust-proof optical chamber, certified to IP6X according to the IEC 60529 standard, reliably prevents the ingress of fine dirt.
Power consumption and noise level
The device's power consumption is 366W, dropping to 300W in minimum mode. Power is supplied via a universal AC 100–240V input. The cooling noise level is kept at 36dB(A), dropping to 33dB(A) in ECO mode. The quiet operation does not disturb the audience during lectures or company presentations. The auto-off function saves energy when idle, and the forced cool-down time after shutdown is 90 seconds.
Projection features for the projector
This short-throw model projects from a distance of 1.3m to 7.8m. The throw ratio ranges from 1.2:1 to 1.92:1. The lens aperture ranges from F 2.3 to 3.0. The short distance eliminates unwanted shadows and prevents glare for the presenter standing directly in front of the screen. The lens's focal length is 17.63 to 27.9mm and is complemented by a 1.6× manual zoom. It also features a vertical lens shift from -106% to +126% and a horizontal shift of ±10%. Keystone correction is ±30° horizontally and vertically. The four-corner adjustment function makes it easy to align the image on an uneven surface. The device supports ceiling, wall and 360° projection.
Sound performance for the projector
Two integrated speakers provide the audio accompaniment. Each offers a separate output of 15W for clear reproduction of speech and music. The sound is sufficient for medium-sized rooms, even without the need to install additional external audio systems. The clear sound complements visual presentations in classrooms and smaller conference rooms.
Advanced features and Full 3D support
The device does not support a SMART operating system, which eliminates complicated network setup. Full 3D support displays three-dimensional content from compatible sources, such as game consoles or players. Gaming mode optimises colour reproduction and contrast for an immersive gaming experience. A special Golf Sim mode faithfully renders the green and blue tones of the turf.
Connectivity
Connectivity includes two HDMI 2.0 inputs and one HDMI 2.0 output. Analogue connections are represented by two VGA inputs and 3.5mm audio jacks. The HDBaseT 3.0 interface transmits an uncompressed signal over a distance of up to 100 metres using a single CAT cable. A LAN port and an RS-232 interface are available for network management. The equipment is rounded off by a USB-A power port with a 1.5A output for connecting external wireless modules.
Technical specifications of the projector
- Technology: DLP
- Brightness: 7000 ANSI lm / 5600 ISO lm
- Resolution: 3840 × 2160 4K UHD
- Speakers: 2 × 15W
- Image screen size: from 31.5" to 301.8"
Package contents
- 1× Optoma ZK708T projector
- Remote control
- AC power cable
Native resolution vs. maximum resolution
Native resolution determines the actual number of physical pixels on the projector's imaging chip and defines the real sharpness of the image, while maximum resolution only indicates the highest signal the projector can receive and convert (downscale) to its native resolution. For a high-quality picture, it is always crucial to look at the native resolution.Specifications
Resolution
Technology
Projection screens
Interface
Operating system
Features and functions
Dimensions
Packaging
Specifications can be changed without notice. Images are for illustrative purposes only.
