Optoma EH412ST vs ViewSonic PA503S
 $930 |  ViewSonic PA503SMSRP $359 | |
|---|---|---|
| Key differences | ||
| Native resolution | 1080p (1920 × 1080) | 800 × 600 |
| Throw ratio | 0.5:1 | 1.96–2.15:1 |
| Lowest input lag | 8.4 msDerived | 16 msDerived |
| HDR formats | HDR10 | — |
| Fan noise | Max 28 dB(A) · Normal 26 dB(A) | Normal 31 dB(A) · Eco 27 dB(A) |
| Price | $930 | MSRP $359 |
| Room fit | ||
| Distance to screen | 1.1 m | 4.0–4.4 m |
| Brightness | ||
| Rated brightness | 4,000 lmDerived | 4,000 lmDerived |
| White light outputANSI | 4,000 lm ANSI | 4,000 lm ANSI |
| Brightness uniformity | 70% | — |
| Display system | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | 0.65 in | 0.55 in |
| On-screen resolution | 1080p (1920 × 1080)Derived | 800 × 600Derived |
| Native resolution | 1080p (1920 × 1080) | 800 × 600 |
| Native aspect | 16:9Derived | 4:3Derived |
| Colour wheel segments | 6 | 6 |
| Contrast | ||
| Dynamic contrast | 50,000:1 | 22,000:1 |
| Colour | ||
| Colour bit depth (per channel) | 10 bit | 10 bit |
| HDR | ||
| HDR formats | HDR10 | — |
| Calibration | ||
| Colour management (CMS) | 6-axis | — |
| Picture certifications | ISF | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | Frame packing, Side-by-side, Top-bottom | — |
| 3D glasses sync | DLP-Link | — |
| Light source | ||
| Light source | Lamp | Lamp |
| Lamp power | 240 W | 190 W |
| Replacement lamp | — | RLC-108 |
| Light-source life | 4,000 h max · 10,000 h eco · 15,000 h super eco · 12,000 h dynamic | 5,000 h normal · 15,000 h super eco |
| Optics | ||
| Throw ratio | 0.5:1 | 1.96–2.15:1 |
| Image size | 36–308 in | 30–300 in |
| Projection offset | 116% | 120% |
| Zoom | Digital | Optical |
| Zoom ratio | — | 1.1×Derived |
| Focal length | 7.42 mm | 22–24.1 mm |
| Aperture (f-number) | 2.8 | 2.56–2.68 |
| Focus | Manual | Manual |
| Autofocus | No | — |
| Vertical lens shift | — | None |
| Horizontal lens shift | — | None |
| Vertical keystone | 40° | 40° |
| Interchangeable lens | No | — |
| Motion & gaming | ||
| Max input refresh | 1080p: 120 Hz | — |
| Max refresh at 1080p | 120 HzDerived | — |
| Input lag | 1080p: 60 Hz 16 ms · 120 Hz 8.4 ms | 1080p: 60 Hz 16 ms |
| Lowest input lag | 8.4 msDerived | 16 msDerived |
| Inputs & control | ||
| HDMI inputs | HDMI 2.0 (HDCP 2.2) · HDMI 1.4 (HDCP 2.2) | HDMI 1.4 (HDCP 1.4) |
| HDMI inputs (count) | 2Derived | 1Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 1.4Derived |
| Other video inputs | VGA | VGA, + Component, + Composite |
| Max input resolution | 4K UHD | WUXGA |
| Audio inputs | 3.5 mm | 3.5 mm |
| Control ports | RS-232 | RS-232 |
| Horizontal scan | 15.38–91.15 kHz | 15–102 kHz |
| Vertical scan | 50–85 Hz | 23–120 Hz |
| Audio | ||
| Speaker power | 10 W | 2 W |
| Speakers | 1 | 1 |
| Layout | — | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 316 × 244 × 115 mm | 294 × 218 × 110 mm |
| Weight | 3,000 g | 2,200 g |
| Colours | White | — |
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Environment & power | ||
| Operating temperature | 5–40°C | 0–40°C |
| Operating humidity | 10–85%RH | 10–90%RH |
| Altitude | 3,000 m · high-altitude mode | 3,000 m · high-altitude mode |
| Power draw | Max 285 W · Normal 230 W · Eco 190 W | 260 W |
| Standby | 0.5 W | Up to 0.5 W |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Max 28 dB(A) · Normal 26 dB(A) | Normal 31 dB(A) · Eco 27 dB(A) |
| Safety & compliance | ||
| Risk group | RG2 | — |
| Marks | FCC | + CE, FCC |
| Support & ownership | ||
| Warranty | 2 yr (light source 3 mo) | 3 yr (light source 1 yr) |
| User manual | https://www.optomausa.com/ContentStorage/Documents/2aef4a4a-ad89-4d77-8b8a-d395179d3957.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/Projector/PA500_PA503%20Series/PA500S_PA503S_SP3_PA500X_PA503X_SP6_PA503W_PA503SP_PA503XP_UG_ENG.pdf |
| Spare parts | — | Lamp RLC-108 |
| In the box | ||
| In the box | Power cord, Remote, + Remote batteries, Quick start guide | Power cord, Remote, Quick start guide, + VGA cable |
| Remote | IR | — |