ProjectorDB

BenQ LK936ST vs Optoma ZK708T

BenQ LK936ST is $399.94 cheaper. Optoma ZK708T is lighter.

BenQ LK936ST$4,899 · Amazon
Buy
Optoma ZK708T$5,298.94 · Amazon
Buy
Key differences
White light output
5,100 lm ANSI—
Throw ratio
0.81–0.89:11.2–1.92:1
Lowest input lag
16.7 msDerived16.9 msDerived
Fan noise
Normal 40 dB(A) · Eco 33 dB(A)Max 36 dB(A) · Eco 33 dB(A)
MSRP
—$7,499
Best price
$4,899$5,298.94
Room fit
Distance to screen
1.8–2.0 m2.7–4.3 m
Picture
White light output
5,100 lm ANSI—
Claimed brightness (non-standard)
—7,000 lm
Brightness uniformity
—85%
Imaging technology
DLPDLP
Native aspect
16:9Derived16:9Derived
Addressable resolution
4K UHD (3840 × 2160)4K UHD (3840 × 2160)
Dynamic contrast
3,000,000:1300,000:1
Colour gamut
Rec. 709 92% coverage—
Colour bit depth (per channel)
10 bit—
Gamma / EOTF presets
2.2, 2.4, 2.6—
HDR formats
HDR10, HLGHDR10, HLG
Colour management (CMS)
6-axis—
3D
YesYes
3D formats
Frame sequential—
3D glasses sync
DLP-Link—
Light source
Light source
Laser (phosphor)Laser (phosphor)
Emitter
—Blue laser + phosphor
Light-source life
20,000 hUp to 30,000 h
Warm-up time
30 s—
Cool-down time
90 s—
Optics
Throw ratio
0.81–0.89:11.2–1.92:1
Image size
30–300 in31.5–302 in
Projection offset
—106%
Zoom
OpticalOptical
Zoom ratio
1.1×Derived1.6×Derived
Focal length
8.6–9.4 mm17.63–27.9 mm
Aperture (f-number)
1.83–1.862.3–3
Focus
Manual—
Autofocus
No—
Vertical lens shift
±60%-106–126%
Horizontal lens shift
±23%±10%
Motorised lens shift
NoNo
Vertical keystone
40°30°
Horizontal keystone
40°30°
Auto keystone
YesYes
Corner correction
—4-corner
Grid warp
Yes—
Motion & gaming
Input lag
1080p: 60 Hz 16.7 ms · 4K UHD: 60 Hz 16.7 ms1080p: 60 Hz 33.8 ms · 120 Hz 17 ms · 240 Hz 17 ms · 4K UHD: 60 Hz 16.9 ms
Inputs & control
HDMI inputs
HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)2 × HDMI 2.0
Other video inputs
HDBaseTVGA, HDBaseT
Max input resolution
4K UHD—
Audio inputs
—3.5 mm
Control ports
RS-232, Wired IR, 12 V triggerRS-232, 12 V trigger
Control-system drivers
CrestronCrestron, AMX
Horizontal scan
15–135 kHz15–140 kHz
Vertical scan
23–240 Hz24–120 Hz
Smart platform
Ethernet
YesYes
Audio
Speaker power
10 W15 W
Speakers
12
Layout
Mono—
Audio formats
Dolby Atmos—
Audio outputs
3.5 mm, Optical, HDMI eARC3.5 mm
HDMI audio return
eARCDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
416 × 351 × 166 mm374 × 302 × 117 mm
Weight
7,000 g6,300 g
Orientations
—Table, Ceiling, Rear, Portrait, 360°
Dust filter
None—
Ingress protection
IP5XIP6X (light engine)
Sealed optical engine
YesYes
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH10–85%RH
Altitude
3,000 m · high-altitude mode—
Power draw
Max 520 W · Normal 440 WMax 366 W · Normal 300 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 W—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 40 dB(A) · Eco 33 dB(A)Max 36 dB(A) · Eco 33 dB(A)
Safety & support
Laser class
Class 1Class 1
Risk group
RG2RG2
FDA laser notice
—Notice 57
Warranty
3 yr—
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20BUSINESS/UserManual/LK936ST/LK936ST_UM_EN_241101130452.pdfhttps://region-resource.optoma.com/products/import/Documents/b0d04fc7-f84c-44a5-b36c-e8109cc85fa3.pdf
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, User manual, Warranty card, HDMI cablePower cord, Remote, Remote batteries, Quick start guide
BenQ LK936ST$4,899 · Amazon
Buy
Optoma ZK708T$5,298.94 · Amazon
Buy