📽️ ProjectorDB

ViewSonic LS740-4K vs ViewSonic LS741HD

Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.

ViewSonic LS740-4KViewSonic LS740-4K
MSRP $1,799.99
ViewSonic LS741HDViewSonic LS741HD
Display system
Imaging technologyDLPDLP
Technology brand—DLP
Number of imaging devices11
Chip / panel diagonal0.65 in0.65 in
Native aspect ratio16:916:9
Native resolution3840 × 21601920 × 1080
Optics
Throw ratio1.4–2.24:11.4–2.24:1
Throw reference pointLensLens
Projection distance table30″: 0.93–1.49 m · 40″: 1.24–1.98 m · 50″: 1.55–2.48 m · 60″: 1.86–2.98 m · 70″: 2.17–3.47 m · 80″: 2.48–3.97 m · 90″: 2.79–4.46 m · 100″: 3.1–4.96 m · 110″: 3.41–5.46 m · 120″: 3.72–5.95 m · 130″: 4.03–6.45 m · 140″: 4.34–6.94 m · 150″: 4.65–7.44 m · 200″: 6.2–9.92 m · 250″: 7.75–12.4 m · 300″: 9.3–14.88 m30″: 0.93–1.49 m · 40″: 1.24–1.98 m · 50″: 1.55–2.48 m · 60″: 1.86–2.98 m · 70″: 2.17–3.47 m · 80″: 2.48–3.97 m · 90″: 2.79–4.46 m · 100″: 3.1–4.96 m · 110″: 3.41–5.46 m · 120″: 3.72–5.95 m · 130″: 4.03–6.45 m · 140″: 4.34–6.94 m · 150″: 4.65–7.44 m · 200″: 6.2–9.92 m · 250″: 7.75–12.4 m · 300″: 9.3–14.88 m
Zoom typeOpticalOptical
Zoom ratio1.6×1.6×
FocusManualManual
Vertical lens shift—0%
Fixed offset124%132%
Focal length—20.91–32.62 mm
F-number—2.5–3.26
Image size range30–300 in30–300 in
Vertical keystone-30–30°-30–30°
Horizontal keystone-30–30°-30–30°
Corner / warp correctionWarp4pt
Light source
Light source typeLaser (phosphor)Laser (phosphor)
Light source detailLaser Phosphor3rd generation laser phosphor
Light source lifeNormal: 20,000 h · Super eco: 30,000 hNormal: 20,000 h · Super eco: 30,000 h
Brightness
ANSI lumens5,000 lm5,000 lm
Claimed brightness (non-standard)—5,500
Claimed brightness unit—Unspecified
Contrast & black level
Dynamic contrast3,000,000:13,000,000:1
Colour
Bit depth / 'number of colours'30 bit30 bit
HDR
HDR formatsHLG—
Motion & gaming
Max refresh rate1920×1080: 240 Hz · 2560×1440: 120 Hz · 3840×2160: 60 Hz—
Audio
Speaker power15 W15 W
Speaker count11
Audio channels—Mono
Audio outputs3.5 mm3.5 mm
Inputs, control & connectivity
Max input signal3840 × 21601920 × 1200
HDMI port count22
HDMI ports (feature-level)HDMI 1: HDMI 2.0, HDCP 2.3; HDMI 2: HDMI 2.0, HDCP 2.3HDMI 1: HDMI 1.4, HDCP 2.2; HDMI 2: HDMI 1.4, HDCP 1.4
Horizontal scan frequency15–135 kHz15–102 kHz
Vertical scan frequency24–240 Hz24–120 Hz
RS-232YesYes
LAN controlYesYes
Control ecosystem drivers—Crestron
EthernetYesYes
3D
3D supportYesYes
3D sync methodDLP-LinkDLP-Link
3D formatsFrame packing, Side-by-side, Top-bottom, Frame sequentialSide-by-side, Top-bottom, Frame sequential, Frame packing
Acoustic noise
Fan noise (sound pressure)Normal: 32 dB(A) · Eco: 27 dB(A)Normal: 30 dB(A) · Eco: 24 dB(A)
Environment & power
Operating temperature0–40°C0–40°C
Operating humidity10–80%RH10–80%RH
Altitude / high-altitude mode3,658 m3,048 m
High-altitude modeYesYes
Operating orientationsTable, Ceiling, Portrait, 360°Table, Ceiling, Rear, Portrait, 360°
Rated voltage100–240 V100–240 V
Rated frequency50–60 Hz50–60 Hz
Power consumption by modeTypical: 165 WTypical: 210 W
Standby power0.5 W0.5 W
Power supplyExternal brickExternal brick
Physical & installation
Width286 mm286 mm
Depth216 mm216 mm
Height129 mm129 mm
Weight3.1 kg3 kg
Ingress protectionIP6XIP6X
Mount hole pattern—Thread: M4 · Screw length max mm: 8
Sealed optical engineYesYes
Air filterNoneNone
Safety & compliance
Photobiological risk groupRG2RG2
Hazard distance1 m—
Laser product classClass 1Class 1
Safety & market certificationsCE, FCCFCC
Support & ownership
Warranty🇺🇸 US 3 yr🇺🇸 US 3 yr
User manualhttps://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD500-4K/LSD500-4K_LS740-4K_UG_ENG.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/projector/LS741HD/LS741HD_UG_ENG.pdf
In the box
Box contentsProjector, Power cord, Power adapter, Remote control, Batteries, Quick start guideProjector, Remote, Batteries, Quick start guide, Power cord, Power adapter
Remote typeIRIR