InFocus IN2138HD vs Optoma ZH451

Optoma ZH451 is lighter.

Key differences
White light output
—4,600 lm ISO
Throw ratio
1.12–1.47:11.4–2.24:1
Lowest input lag
—8.6 msDerived
Light source
LampLaser (phosphor)
Fan noise
Up to Eco 21 dB(A)Max 31 dB(A) · Eco 29 dB(A)
MSRP
$1,139—
Room fit
Distance to screen
2.5–3.3 m3.1–5.0 m
Picture
White light output
—4,600 lm ISO
Claimed brightness (non-standard)
4,500 lm—
Brightness uniformity
—75%
Brightness by mode
Normal 4,500 lm · Eco 3,360 lm—
Eco brightness
75%Derived—
Imaging technology
DLPDLP
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Colour wheel segments
6—
Dynamic contrast
—3,000,000:1
Colour bit depth (per channel)
10 bit10 bit
3D
YesYes
3D formats
Frame packing, Side-by-side, Top-bottomFrame packing, Side-by-side, Top-bottom
3D glasses sync
DLP-LinkDLP-Link
Light source
Light source
LampLaser (phosphor)
Lamp power
245 W—
Replacement lamp
SP-LAMP-101—
Light-source life
5,000 h normal · 10,000 h eco · 15,000 h dynamic30,000 h
Light output control
—Steps
Cool-down time
90 s—
Optics
Throw ratio
1.12–1.47:11.4–2.24:1
Image size
30.8–301 in30–300 in
Projection offset
—116%
Zoom
OpticalOptical
Zoom ratio
1.31×Derived1.6×Derived
Focal length
—20.91–32.62 mm
Aperture (f-number)
—2.5–3.26
Focus
ManualManual
Autofocus
NoNo
Vertical lens shift
None—
Horizontal lens shift
None—
Vertical keystone
40°30°
Horizontal keystone
—30°
Corner correction
—4-corner
Interchangeable lens
No—
Motion & gaming
Input lag
—1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.9 ms
Inputs & control
HDMI inputs
3 × HDMI 1.42 × HDMI 2.0
Other video inputs
VGA, CompositeVGA
Max input resolution
WUXGA4K UHD
Audio inputs
3.5 mm3.5 mm
Control ports
RS-232RS-232, 12 V trigger
PJLink
—Class 2
Control-system drivers
—Crestron, AMX
Horizontal scan
31.5–97.6 kHz15–135 kHz
Vertical scan
56–120 Hz24–120 Hz
Smart platform
Ethernet
YesYes
Audio
Speaker power
10 W15 W
Speakers
11
Layout
MonoMono
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
312 × 236 × 125 mm274 × 216 × 114 mm
Weight
3,200 g2,998 g
Orientations
Table, Ceiling, RearTable, Ceiling, Rear, Portrait, 360°
Ceiling mount
—M4, screws ≥ 10 mm
Ingress protection
—IP6X
Environment & power
Operating temperature
5–40°C0–40°C
Operating humidity
—0–80%RH
Altitude
3,048 m2,500 m · high-altitude mode
Power draw
Max 300 W · Eco 220 WMax 170 W · Eco 120 W
Standby
Up to 0.5 WUp to 0.5 W
Power supply
—External adapter
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Up to Eco 21 dB(A)Max 31 dB(A) · Eco 29 dB(A)
Safety & support
Laser class
—Class 1
Risk group
—RG2
Marks
CE, FCC, UL, CCC, KCFCC
User manual
https://www.projectorcentral.com/pdf/projector_manual_10666.pdfhttps://region-resource.optoma.com/products/documents/mpTwkm9mUWvfsgMhppFmV04EqeoeeRYWmvKy7tBF.pdf
In the box
In the box
Power cord, Remote, User manual, HDMI cablePower cord, Remote, Remote batteries, User manual