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InFocus IN1106SL vs Optoma ZH451ST

InFocus IN1106SL is quieter and lighter. Optoma ZH451ST is sharper and in stock.

InFocus IN1106SL
Optoma ZH451ST$1,698.98 · Amazon
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Key differences
White light output
—4,200 lm ISO
Native resolution
WXGA (1280 × 800)1080p (1920 × 1080)
Throw ratio
1.54–1.72:10.5:1
Lowest input lag
—8.4 msDerived
HDR formats
—HDR10, HLG
Fan noise
Normal 32 dB(A) · Eco 27 dB(A)Normal 36 dB(A) · Eco 29 dB(A)
Best price
—$1,698.98
Room fit
Distance to screen
3.3–3.7 m1.1 m
Picture
White light output
—4,200 lm ISO
Claimed brightness (non-standard)
4,000 lm—
Brightness uniformity
80%75%
Imaging technology
DLPDLP
Native resolution
WXGA (1280 × 800)1080p (1920 × 1080)
Native aspect
16:10Derived16:9Derived
Dynamic contrast
—2,000,000:1
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
—2.2, 2.4
HDR formats
—HDR10, HLG
Colour management (CMS)
6-axis6-axis
Picture certifications
—ISF, Filmmaker Mode
3D
YesYes
3D formats
Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential
3D glasses sync
DLP-LinkDLP-Link
Light source
Light source
Laser (phosphor)Laser (phosphor)
Emitter
—Blue laser + phosphor
Light engine
Quantum LaserDuraCore
Light-source life
30,000 h max30,000 h
Light output control
—Steps
Constant brightness mode
—Yes
Cool-down time
—90 s
Optics
Throw ratio
1.54–1.72:10.5:1
Image size
30–300 in30–300 in
Projection offset
112%116%
Zoom
OpticalDigital
Zoom ratio
1.12×Derived—
Focal length
21.85–24 mm7.51 mm
Aperture (f-number)
2.41–2.532.8
Focus
ManualManual
Autofocus
NoNo
Vertical lens shift
None—
Horizontal lens shift
None—
Vertical keystone
30°15°
Horizontal keystone
30°15°
Auto keystone
Yes—
Corner correction
4-corner4-corner
Motion & gaming
Input lag
—About 1080p: 60 Hz 16.7 ms · 120 Hz 8.4 ms · 4K UHD: 60 Hz 16.7 ms
Inputs & control
HDMI inputs
2 × HDMI 1.42 × HDMI 2.0
Other video inputs
—VGA
Max input resolution
WUXGA4K UHD
Control ports
RS-232RS-232, Wired IR, 12 V trigger
PJLink
—Class 1
Control-system drivers
—Crestron
Horizontal scan
15–135 kHz15–135 kHz
Vertical scan
23–120 Hz24–120 Hz
Smart platform
Ethernet
—Yes
Audio
Speaker power
15 W15 W
Speakers
11
Layout
MonoMono
Audio outputs
3.5 mm—
HDMI audio return
NoneDerived—
Physical & installation
Dimensions (W × D × H)
278 × 216 × 115 mm274 × 216 × 114 mm
Weight
2,800 g3,000 g
Orientations
Table, Ceiling, Rear, Portrait, 360°Portrait, 360°
Ceiling mount
M4, screws ≥ 10 mmM4, 10 mm screws
Ingress protection
—IP6X
Sealed optical engine
Yes—
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–80%RH—
Altitude
3,048 m2,500 m · high-altitude mode
Power draw
Max 150 WMax 170 W
Standby
Up to 0.5 WUp to 0.5 W
Power supply
External adapterExternal adapter
Mains input
—100–240 V · 50/60 Hz
DC input
19.5 V—
Fan noise
Normal 32 dB(A) · Eco 27 dB(A)Normal 36 dB(A) · Eco 29 dB(A)
Safety & support
Laser class
Class 1Class 1
Risk group
RG2RG2
Hazard distance
—1 m
FDA laser notice
Notice 57—
Marks
CE, FCCFCC
User manual
https://cdn.infocus.com/2026/07/IN1106SL_1108SL_1108ST_UG_EN_v1.pdfhttps://region-resource.optoma.com/products/documents/0NL94Q0vvVEJVe7dxQKlMzhtuURlT8FwUXNkLi8y.pdf
In the box
In the box
Power cord, Power adapter, Remote, Quick start guide, HDMI cable, Lens capPower cord, Remote, Remote batteries, Quick start guide
Remote
IRIR
InFocus IN1106SL
Optoma ZH451ST$1,698.98 · Amazon
Buy