Optoma ZK450

Brand	Optoma · Professional
Type	Business
Released	October 2023
Resolution	4K UHD
HDR formats	HDR10, HLG
Imaging technology	DLP
Light source	Laser (phosphor)
Claimed brightness (non-standard)	4,200 lm
Throw ratio	1.4–2.24:1
Input lag	1080p: 60 Hz 16 ms · 120 Hz 8 ms · 240 Hz 4.4 ms · 4K UHD: 60 Hz 16 ms

A compact 4K UHD single-chip DLP laser projector rated by Optoma at 4,200 lumens, for conference rooms, classrooms and corporate spaces. It has a 1.6x manual zoom with no optical lens shift, two HDMI 2.0 ports (HDMI 2 with eARC), RS232 and RJ45 control, and an external power supply.

Data sheet

Picture

Claimed brightness (non-standard)	4,200 lm
Brightness uniformity	80%
Imaging technology	DLP
Chip / panel diagonal	0.65 in
Native aspect	16:9Derived
Addressable resolution	4K UHD (3840 × 2160)
Dynamic contrast	300,000:1
Gamma / EOTF presets	2.2, 2.4
HDR formats	HDR10, HLG
Colour management (CMS)	6-axis
3D	Yes
3D formats	Side-by-side, Top-bottom, Frame sequential
3D glasses sync	DLP-Link

Light source

Light source	Laser (phosphor)
Light-source life	Up to 30,000 h max
Light output control	Steps
Cool-down time	90 s

Optics

Throw ratio	1.4–2.24:1100″ · 3.10–4.96 m
Image size	26–303 in
Projection offset	116%
Zoom	Optical
Zoom ratio	1.6×Derived
Focal length	20.91–32.62 mm
Aperture (f-number)	2.5–3.26
Focus	Manual
Autofocus	No
Vertical keystone	30°
Horizontal keystone	30°
Corner correction	4-corner

Motion & gaming

Max input refresh	1080p: 240 Hz · 4K UHD: 60 Hz
Input lag	1080p: 60 Hz 16 ms · 120 Hz 8 ms · 240 Hz 4.4 ms · 4K UHD: 60 Hz 16 ms Gaming Mode On	Gaming Mode On

Inputs & control

HDMI inputs	HDMI 2.0 · HDMI 2.0 (eARC)
Max input resolution	4K UHD
Control ports	RS-232
Control-system drivers	Crestron, AMX

Smart platform

Ethernet

Yes

Audio

Speaker power	15 W
Speakers	1
Audio outputs	3.5 mm, HDMI eARC
HDMI audio return	eARCDerived

Physical & installation

Dimensions (W × D × H)	274 × 216 × 114 mm
Weight	3,000 g
Orientations	Table, Ceiling, Rear, Portrait, 360°
Ceiling mount	M4, screws ≥ 10 mm
Ingress protection	IP6X

Environment & power

Operating temperature	0–40°C
Power draw	Max 185 W · Eco 126 W
Standby	Up to 0.5 W
Networked standby	Up to 2 W
Power supply	External adapter
Mains input	100–240 V · 50/60 Hz
Fan noise	Max 35 dB(A) · Normal 28 dB(A)

Safety & support

Laser class	Class 1
Risk group	RG2
FDA laser notice	Notice 57
Marks	FCC
Warranty	🇺🇸 US 1 yr (light source 5 yr or 12,000 h) Listed on the product page under Associated Accessories; ProjectorCentral also says 1 year.
User manual	region-resource.optoma.com

In the box

Power cord, Power adapter, Remote, Remote batteries, Quick start guide, User manual

Similar models

Model	Resolution	Tech	Lumens	Price
ViewSonic LS710HD 1080p · DLP	1080p	DLP	4,200	—	Compare
InFocus ScreenPlay Vista SP2234ST 1024 × 768 · DLP	1024 × 768	DLP	4,200*	$594.18 −$5,155	Compare
Optoma W405LVe WXGA · DLP	WXGA	DLP	4,200	$429 −$5,320	Compare
Optoma ZH451ST 1080p · DLP	1080p	DLP	4,200	$1,499 −$4,250	Compare
Optoma ZH450ST 1080p · DLP	1080p	DLP	4,200*	$3,499 −$2,250	Compare
Optoma ZK420UST 4K UHD · DLP	4K UHD	DLP	4,200	—	Compare

Other

Tools

Throw calculator — How far from the screen the ZK450 needs to sit for a given image size, set to its 1.4–2.24:1 lens.
Download spec as CSV — Every value on this data sheet with its unit and source, one row per spec.
Download spec as JSON — The same data from the open data API, with variants and identifiers.

Variants & identifiers

Use these to confirm a listing is this exact model. Any of them works at /p/{code}.

Variant	Region	Type	Code
Standard, US	🇺🇸 US	UPC	796435446871
Standard, US	🇺🇸 US	MPN	ZK450