ProjectorDB

BenQ LK830ST vs ViewSonic LS750WU

BenQ LK830ST is lighter and in stock. ViewSonic LS750WU is brighter and sharper.

BenQ LK830ST$2,599 · Amazon
Buy
ViewSonic LS750WUMSRP $2,565
Key differences
White light outputANSI
4,000 lm ANSI5,000 lm ANSI
Native resolution
1080p (1920 × 1080)WUXGA (1920 × 1200)
Throw ratio
0.5:11.13–1.47:1
Lowest input lag
4.2 msDerived—
HDR formats
HDR10, HLG—
Fan noise
Normal 30 dB(A) · Eco 24 dB(A)—
MSRP
$2,499$2,565
Best price
$2,599—
Room fit
Distance to screen
1.1 m2.4–3.2 m
Picture
White light outputANSI
4,000 lm ANSI5,000 lm ANSI
Imaging technology
DLPDLP
Chip / panel diagonal
0.65 in—
Native resolution
1080p (1920 × 1080)WUXGA (1920 × 1200)
Native aspect
16:9Derived16:10Derived
Pixel shift
XPR 4-way—
Addressable resolution
4K UHD (3840 × 2160)—
Dynamic contrast
3,000,000:13,000,000:1
Dynamic contrast method
—Light-source dimming
Colour gamut
Rec. 709 93% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.6—
HDR formats
HDR10, HLG—
Tone mapping
Adjustable—
Colour management (CMS)
6-axis—
Picture mode memories
22
3D
YesYes
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential
Light source
Light source
Laser (phosphor)Laser (phosphor)
Emitter
—Blue laser + phosphor
Light-source life
20,000 h normal · 30,000 h eco20,000 h normal · 20,000 h dynamic
Light output control
Continuous—
Optics
Throw ratio
0.5:11.13–1.47:1
Image size
70–300 in30–300 in
Projection offset
114%—
Zoom
DigitalOptical
Zoom ratio
—1.3×Derived
Focal length
17.51 mm—
Aperture (f-number)
2.8—
Focus
ManualManual
Vertical lens shift
NoneNone
Horizontal lens shift
NoneNone
Vertical keystone
30°40°
Horizontal keystone
30°40°
Auto keystone
Yes—
Corner correction
4-corner4-corner
Grid warp
Yes—
Interchangeable lens
NoNo
Motion & gaming
Max input refresh
1080p: 120 Hz · 240 Hz · 4K UHD: 60 Hz—
Input lag
1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms—
Inputs & control
HDMI inputs
2 × HDMI 2.0 (HDCP 2.2)2 × HDMI 1.4 (HDCP 1.4)
Other video inputs
—VGA, Composite
Max input resolution
4K UHDWUXGA
Audio inputs
—3.5 mm, RCA
Control ports
RS-232RS-232, 12 V trigger
Control-system drivers
AMXControl4, Crestron, AMX
Horizontal scan
15–135 kHz15–102 kHz
Vertical scan
23–240 Hz23–120 Hz
Smart platform
Wi-Fi
None—
Ethernet
YesYes
Audio
Speaker power
15 W20 W
Speakers
12
Layout
Mono—
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
279 × 229 × 121 mm405 × 305 × 144 mm
Weight
3,600 g5,900 g
Colours
Black—
Orientations
Ceiling, RearTable, Ceiling, Rear, 360°
Ceiling mount
M4M4, 12.8–15.8 mm screws
Ingress protection
IP6X (light engine)—
Sealed optical engine
Yes—
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–80%RH10–90%RH
Altitude
3,000 m · high-altitude mode3,000 m · high-altitude mode
Power draw
Max 250 W · Normal 230 W · Eco 130 W460 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 W—
Power supply
External adapter—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
DC input
24 V—
Fan noise
Normal 30 dB(A) · Eco 24 dB(A)—
Safety & support
Laser class
Class 1Class 1
Risk group
RG2—
Marks
—FCC
Warranty
3 yr5 yr or 20,000 h
User manual
https://www.audiogeneral.com/BenQ/LK830ST/LK830ST_LH830ST_LW830ST_User_Manual.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/LS750WU_LS850WU_LS860WU/LS750WU_LS850WU_LS860WU_UG_ENG.pdf
In the box
In the box
Power cord, Power adapter, Remote, Remote batteries, Quick start guide, Warranty cardPower cord, Remote, Remote batteries, Quick start guide, VGA cable
Remote
BacklitIR
BenQ LK830ST$2,599 · Amazon
Buy
ViewSonic LS750WUMSRP $2,565