Optoma EH412ST vs ViewSonic PA503W

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

Optoma EH412STViewSonic PA503WViewSonic PA503W
MSRP $439.99
Display system
Imaging technologyDLPDLP
Technology brandDLPDLP
Number of imaging devices11
Chip / panel diagonal0.65 in0.65 in
Native aspect ratio16:916:10
Native resolution1920 × 10801280 × 800
Colour wheel segments6 segments: R, Y, G, C, W, B6 segments
Optics
Throw ratio0.5:11.55–1.7:1
Projection distance table37″: 0.41 m · 40″: 0.44 m · 50″: 0.55 m · 60″: 0.66 m · 70″: 0.77 m · 80″: 0.88 m · 90″: 0.99 m · 100″: 1.1 m · 110″: 1.22 m · 120″: 1.33 m · 130″: 1.44 m · 140″: 1.55 m · 150″: 1.66 m · 160″: 1.77 m · 170″: 1.88 m · 180″: 1.99 m · 190″: 2.1 m · 200″: 2.21 m · 210″: 2.32 m · 220″: 2.43 m · 230″: 2.54 m · 240″: 2.65 m · 250″: 2.76 m · 260″: 2.87 m · 270″: 2.98 m · 280″: 3.09 m · 290″: 3.2 m · 300″: 3.31 m60″: 2–2.2 m · 70″: 2.33–2.57 m · 80″: 2.67–2.93 m · 90″: 3–3.3 m · 100″: 3.33–3.67 m · 110″: 3.67–4.03 m · 120″: 4–4.4 m · 130″: 4.33–4.77 m · 140″: 4.67–5.13 m · 150″: 5–5.5 m · 160″: 5.33–5.87 m · 170″: 5.67–6.23 m · 180″: 6–6.6 m
Zoom typeDigitalOptical
Zoom ratio—1.1×
FocusManualManual
Fixed offset116%100%
Focal length7.42 mm22–24.1 mm
F-number2.82.56–2.68
Interchangeable lensNo—
Image size range36.2–308 in30–300 in
Vertical keystone-40–40°-40–40°
Light source
Light source typeLampLamp
Light source detail—200W UHP lamp
Lamp wattage240 W200 W
Light source lifeBright: 4,000 h · Dynamic: 12,000 h · Eco: 10,000 h · Eco plus: 15,000 hNormal: 6,000 h · Super eco: 15,000 h
Brightness
ANSI lumens4,000 lm4,000 lm
Brightness uniformity (centre-to-corner)70%—
Contrast & black level
Dynamic contrast50,000:122,000:1
Colour
Bit depth / 'number of colours'30 bit30 bit
Calibration & picture control
Colour management system6-axis6-axis
ISF certifiedYes—
HDR
HDR formatsHDR10—
Motion & gaming
Max refresh rate1920×1080: 120 Hz—
Input lag (rated)1920×1080 @ 60 Hz: 16 ms · 1920×1080 @ 120 Hz: 8.4 ms1920×1080 @ 60 Hz: 16 ms
Audio
Speaker power10 W2 W
Speaker count11
Audio outputs3.5 mm3.5 mm
Inputs, control & connectivity
Max input signal3840 × 21601920 × 1080
HDMI port count21
HDMI ports (feature-level)HDMI 1: HDMI 2.0, HDCP 2.2; HDMI 2 / MHL: HDMI 1.4, HDCP 2.2HDMI: HDMI 1.4, HDCP 1.4
Audio input terminals3.5 mm3.5 mm
Horizontal scan frequency15.38–91.15 kHz15–102 kHz
Vertical scan frequency50–85 Hz23–120 Hz
VGA inputYesYes
RS-232YesYes
LAN control—No
Ethernet—No
3D
3D supportYesYes
3D sync methodDLP-Link—
3D formatsFrame packing, Side-by-side, Top-bottomFrame sequential, Frame packing, Top-bottom, Side-by-side
Acoustic noise
Fan noise (sound pressure)Typical: 26 dB(A) · Max: 28 dB(A)Normal: 31 dB(A) · Eco: 27 dB(A)
Environment & power
Operating temperature5–40°C0–40°C
Operating humidity10–85%RH10–90%RH
Altitude / high-altitude mode3,000 m3,000 m
High-altitude modeYesYes
Operating orientationsTable, Ceiling, RearTable, Ceiling, Rear
Rated voltage100–240 V100–240 V
Rated frequency50–60 Hz50–60 Hz
Power consumption (max)285 W280 W
Power consumption by modeBright typical: 230 W · Bright max: 253 W · Eco typical: 190 W · Eco max: 209 WTypical: 260 W
Standby power0.5 W0.5 W
Physical & installation
Width316 mm294 mm
Depth244 mm218 mm
Height115 mm110 mm
Weight3 kg2.2 kg
Colours / finishesWhite—
Mount hole pattern—Thread: M4 · Screw length max mm: 8
Safety & compliance
Photobiological risk groupRG2RG2
Safety & market certificationsFCCFCC
Support & ownership
Warranty🇺🇸 US 2 yr🇺🇸 US 3 yr
Light-source warranty90 days1 year (US)
User manualhttps://www.optomausa.com/ContentStorage/Documents/2aef4a4a-ad89-4d77-8b8a-d395179d3957.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/PA500_PA503%20Series/PA500S_PA503S_SP3_PA500X_PA503X_SP6_PA503W_PA503SP_PA503XP_UG_ENG.pdf
In the box
Box contentsProjector, Power cord, Remote, Batteries, Quick start guideProjector, Power cord, Vga cable, Remote, Batteries, Quick start guide
Remote typeIRIR