ProjectorDB

Optoma ZH450ST vs Optoma ZK450

Optoma ZH450ST
Optoma ZH450ST
MSRP $3,499
Optoma ZK450Optoma ZK450
MSRP $5,749
Key differences
Native resolution1080p (1920 × 1080)—
Throw ratio0.5:11.4–2.24:1
Lowest input lag8.6 msDerived4.4 msDerived
Fan noiseMax 34 dB(A) · Normal 32 dB(A)Max 35 dB(A) · Normal 28 dB(A)
PriceMSRP $3,499MSRP $5,749
Room fit
Distance to screen1.1 m3.1–5.0 m
Brightness
Claimed brightness (non-standard)4,200 lm4,200 lm
Brightness uniformity75%80%
Display system
Imaging technologyDLPDLP
Chip / panel diagonal0.65 in0.65 in
On-screen resolution1080p (1920 × 1080)Derived4K UHD (3840 × 2160)Derived
Native resolution1080p (1920 × 1080)—
Native aspect16:9Derived16:9Derived
Addressable resolution—4K UHD (3840 × 2160)
Contrast
Dynamic contrast2,000,000:1300,000:1
Colour
Colour bit depth (per channel)10 bit—
Gamma / EOTF presets—2.2, 2.4
HDR
HDR formatsHDR10, HLGHDR10, HLG
Calibration
Colour management (CMS)—6-axis
3D
3DYesYes
3D formats+ Frame packing, Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential
3D glasses syncDLP-LinkDLP-Link
Light source
Light sourceLaser (phosphor)Laser (phosphor)
Light-source life30,000 hUp to 30,000 h max
Light output controlStepsSteps
Cool-down time—90 s
Optics
Throw ratio0.5:11.4–2.24:1
Image size36–292 in26–303 in
Projection offset116%116%
ZoomNoneOptical
Zoom ratio—1.6×Derived
Focal length7.51 mm20.91–32.62 mm
Aperture (f-number)2.82.5–3.26
FocusManualManual
AutofocusNoNo
Vertical keystone30°30°
Horizontal keystone30°30°
Corner correction4-corner4-corner
Motion & gaming
Max input refresh1080p: 120 Hz1080p: 240 Hz · 4K UHD: 60 Hz
Max refresh at 1080p120 HzDerived240 HzDerived
Max refresh at 4K—60 HzDerived
Input lag1080p: 60 Hz 17 ms · 120 Hz 8.6 ms1080p: 60 Hz 16 ms · 120 Hz 8 ms · 240 Hz 4.4 ms · 4K UHD: 60 Hz 16 ms
Lowest input lag8.6 msDerived4.4 msDerived
Input lag at 4K 60 Hz—16 msDerived
Inputs & control
HDMI inputs2 × HDMI 2.0 (HDCP 2.2)HDMI 2.0 · HDMI 2.0 (eARC)
HDMI inputs (count)2Derived2Derived
Newest HDMI versionHDMI 2.0DerivedHDMI 2.0Derived
Max input resolution4K UHD4K UHD
Control portsRS-232RS-232
Control-system drivers—Crestron, AMX
Horizontal scan15–140 kHz15–140 kHz
Vertical scan24–120 Hz24–240 Hz
Smart platform
EthernetYesYes
Audio
Speaker power15 W15 W
Speakers11
LayoutMono—
Audio outputs3.5 mm3.5 mm, + HDMI eARC
HDMI audio returnNoneDerivedeARCDerived
Physical & installation
Dimensions (W × D × H)274 × 216 × 114 mm274 × 216 × 114 mm
Weight3,000 g3,000 g
OrientationsTable, Ceiling, Rear, 360°Table, Ceiling, Rear, + Portrait, 360°
Ceiling mountM4, screws ≥ 10 mmM4, screws ≥ 10 mm
Ingress protectionIP6XIP6X
Environment & power
Operating temperature0–40°C0–40°C
Operating humidity0–80%RH—
Altitude2,500 m · high-altitude mode—
Power drawMax 173 W · Eco 119 WMax 185 W · Eco 126 W
StandbyUp to 0.5 WUp to 0.5 W
Networked standby—Up to 2 W
Power supplyExternal adapterExternal adapter
Mains input100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Noise
Fan noiseMax 34 dB(A) · Normal 32 dB(A)Max 35 dB(A) · Normal 28 dB(A)
Safety & compliance
Laser classClass 1Class 1
Risk groupRG2RG2
FDA laser notice—Notice 57
MarksFCCFCC
Support & ownership
Warranty3 yr (light source 5 yr or 12,000 h)1 yr (light source 5 yr or 12,000 h)
User manualhttps://region-resource.optoma.com/products/import/Documents/02387d20-4b12-4d04-97e4-be316b803cf2.pdfhttps://region-resource.optoma.com/products/import/Documents/cbd58627-8cc5-43de-9633-fa24cd20bd45.pdf
In the box
In the boxPower cord, Remote, Remote batteries, User manualPower cord, + Power adapter, Remote, Remote batteries, + Quick start guide, User manual
RemoteIR—