ProjectorDB

Epson PowerLite 815E vs Optoma ZK521ST

Epson PowerLite 815E
Epson PowerLite 815E
MSRP $3,662
Optoma ZK521ST
Optoma ZK521ST
MSRP $2,699
Key differences
White light outputISO5,000 lm ISO (Normal power, Dynamic mode)5,000 lm ISO
Native resolution1080p (1920 × 1080)—
Throw ratio0.16–0.22:10.79:1
Lowest input lag—8.6 msDerived
HDR formatsHDR10, HLG—
Fan noiseNormal 35 dB(A) · Eco 26 dB(A)Max 29 dB(A) · Eco 29 dB(A)
PriceMSRP $3,662MSRP $2,699
Room fit
Distance to screen0.35–0.49 m1.7 m
Brightness
Rated brightness5,000 lmDerived5,000 lmDerived
White light outputISO5,000 lm ISO (Normal power, Dynamic mode)5,000 lm ISO
Colour light output5,000 lm (Normal power, Dynamic mode)—
Brightness uniformity—75%
Brightness by modeNormal 5,000 lm · Eco 3,500 lm—
Eco brightness70%Derived—
Display system
Imaging technology3LCDDLP
On-screen resolution1080p (1920 × 1080)Derived4K UHD (3840 × 2160)Derived
Native resolution1080p (1920 × 1080)—
Native aspect16:9Derived16:9Derived
Pixel shiftYes (scheme not stated)—
Addressable resolution—4K UHD (3840 × 2160)
Contrast
Dynamic contrastOver 2,500,000:12,000,000:1
Colour
Colour bit depth (per channel)10 bit—
HDR
HDR formatsHDR10, HLG—
3D
3D—Yes
3D formats—Frame packing, Side-by-side, Top-bottom
Light source
Light sourceLaser (phosphor)Laser (phosphor)
Light-source life20,000 h normal · 30,000 h eco30,000 h eco
Life defined as50% brightness—
Light output controlContinuous—
Constant brightness modeYes—
Optics
Throw ratio0.16–0.22:10.79:1
Image size80–160 in30–300 in
Projection offset—104%
ZoomDigitalNone
Focal length2.3 mm11.6 mm
Aperture (f-number)1.8—
FocusManualManual
Vertical lens shift—0–21%
Vertical keystone—15°
Horizontal keystone—15°
Corner correction—4-corner
Interchangeable lensNo—
Motion & gaming
Frame interpolation (MEMC)Yes—
Input lag—1080p: 60 Hz 16.7 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.7 ms
Lowest input lag—8.6 msDerived
Input lag at 4K 60 Hz—16.7 msDerived
Inputs & control
HDMI inputs2 × HDMI (HDCP 2.3)2 × HDMI 2.0
HDMI inputs (count)2Derived2Derived
Newest HDMI version—HDMI 2.0Derived
Other video inputs+ HDBaseT+ VGA
Max input resolutionDCI 4K—
Audio inputs—3.5 mm
USB media playbackYes—
Control portsRS-232RS-232, + 12 V trigger
PJLinkClass 2—
Control-system driversCrestron, AMX—
Horizontal scan—15–150 kHz
Vertical scan—24–240 Hz
Smart platform
Wi-FiWi-Fi 5—
EthernetYesYes
CastingMiracast—
Audio
Speaker power16 W15 W
Speakers21
LayoutStereo—
Audio outputs—3.5 mm
HDMI audio return—NoneDerived
Physical & installation
Dimensions (W × D × H)695 × 341 × 145 mm274 × 216 × 114 mm
Weight12,500 g3,000 g
Colours+ Black+ White
Orientations+ Table, + Ceiling, + Rear+ Portrait, + 360°
Ceiling mount4 × M4, screws ≤ 9 mm—
Dust filterReplaceable—
Ingress protection—IP6X
Environment & power
Operating temperature0–40°C0–40°C
Operating humidity20–80%RH—
Altitude3,048 m · high-altitude mode3,048 m
Power drawNormal 398 W · Eco 296 WMax 196 W · Eco 147 W
Standby0.4 WUp to 0.5 W
Networked standby2 W—
Mains input100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Noise
Fan noiseNormal 35 dB(A) · Eco 26 dB(A)Max 29 dB(A) · Eco 29 dB(A)
Safety & compliance
Laser classClass 1 (US: Class 1)Class 1
Risk groupRG2RG2
Hazard distance—1 m
Eye-protection sensorYes—
FDA laser noticeNotice 57Notice 57
MarksFCC, + ULFCC
Support & ownership
Warranty🇺🇸 US 3 yr · 🇨🇦 CA 3 yr3 yr (light source 5 yr or 12,000 h)
User manualhttps://files.support.epson.com/docid/cpd6/cpd63352.pdfhttps://region-resource.optoma.com/products/documents/wFtzMmyO3OCool38MbOjdfDaDBHsVvtzzQkcczrK.pdf
Spare partsAir filter V13H134AE0 · Mount V12HB12010—
In the box
In the boxPower cord, Remote, Remote batteries, + Quick start guidePower cord, Remote, Remote batteries, + User manual