LG ProBeam BU53RG vs Optoma ZK450

LG ProBeam BU53RG is $1,817.80 cheaper and in stock. Optoma ZK450 is lighter.

Key differences
White light output
5,000 lm ANSI—
Throw ratio
0.94–1.14:11.4–2.24:1
Lowest input lag
—4.4 msDerived
HDR formats
—HDR10, HLG
Fan noise
Max 33 dB(A) · Eco 29 dB(A)Max 35 dB(A) · Normal 28 dB(A)
MSRP
$3,799$5,749
Best price
$3,931.20—
Room fit
Distance to screen
2.1–2.5 m3.1–5.0 m
Picture
White light output
5,000 lm ANSI—
Claimed brightness (non-standard)
—4,200 lm
Brightness uniformity
—80%
Imaging technology
DLPDLP
Chip / panel diagonal
—0.65 in
Native aspect
16:9Derived16:9Derived
Addressable resolution
4K UHD (3840 × 2160)4K UHD (3840 × 2160)
Dynamic contrast
3,000,000:1300,000:1
Gamma / EOTF presets
—2.2, 2.4
HDR formats
—HDR10, HLG
Tone mapping
Dynamic—
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)Laser (phosphor)
Light-source life
Up to 20,000 hUp to 30,000 h max
Light output control
—Steps
Cool-down time
—90 s
Optics
Throw ratio
0.94–1.14:11.4–2.24:1
Image size
40–300 in26–303 in
Projection offset
—116%
Zoom
OpticalOptical
Zoom ratio
1.21×Derived1.6×Derived
Focal length
—20.91–32.62 mm
Aperture (f-number)
—2.5–3.26
Focus
ManualManual
Autofocus
NoNo
Vertical lens shift
±50%—
Horizontal lens shift
±20%—
Motorised lens shift
No—
Vertical keystone
—30°
Horizontal keystone
—30°
Auto keystone
No—
Corner correction
—4-corner
Grid warp
Yes—
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
Inputs & control
HDMI inputs
2 × HDMI 2.0 (HDCP 2.2)HDMI 2.0 · HDMI 2.0 (eARC)
Max input resolution
DCI 4K4K UHD
USB media playback
Yes—
Control ports
RS-232RS-232
Control-system drivers
—Crestron, AMX
Horizontal scan
—15–140 kHz
Vertical scan
—24–240 Hz
Smart platform
Ethernet
YesYes
Smart platform
webOS—
OS version
6—
Casting
Miracast—
Audio
Speaker power
10 W15 W
Speakers
21
Audio outputs
3.5 mm3.5 mm, HDMI eARC
HDMI audio return
NoneDerivedeARCDerived
Physical & installation
Dimensions (W × D × H)
370 × 290 × 156 mm274 × 216 × 114 mm
Weight
9,700 g3,000 g
Colours
Black, White—
Orientations
Table, Ceiling, RearTable, Ceiling, Rear, Portrait, 360°
Ceiling mount
—M4, screws ≥ 10 mm
Ingress protection
—IP6X
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
0–80%RH—
Altitude
High-altitude mode—
Power draw
Max 400 WMax 185 W · Eco 126 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
—Up to 2 W
Power supply
Built inExternal adapter
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Max 33 dB(A) · Eco 29 dB(A)Max 35 dB(A) · Normal 28 dB(A)
Safety & support
Laser class
Class 1Class 1
Risk group
RG2RG2
FDA laser notice
—Notice 57
Marks
—FCC
Warranty
3 yr1 yr (light source 5 yr or 12,000 h)
User manual
—https://region-resource.optoma.com/products/import/Documents/cbd58627-8cc5-43de-9633-fa24cd20bd45.pdf
In the box
In the box
Power cord, Remote, Remote batteries, User manualPower cord, Power adapter, Remote, Remote batteries, Quick start guide, User manual
LG ProBeam BU53RG$3,931.20 · Amazon
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