ProjectorsMFR-VERIFIED

ViewSonic PX748-4K

ViewSonic

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Specifications · per-field provenance

● SOURCE-TRACKED
Where we have it, each spec shows where the data came from.
TechnologyDLP 1chipManufacturer
Native Resolution4K pixel shiftRetailer
Brightness Lumens4000Manufacturer
Contrast Ratio Dynamic12,000:1Manufacturer
HDR SupportHDR, HLGManufacturer
Light Source Typelamp UHP
Lamp Life Normal Hrs4000Manufacturer
Throw Ratio Min1.13Manufacturer
Throw Ratio Max1.47Manufacturer
Throw TypestandardManufacturer
Optical Zoom Range1.3x optical zoomManufacturer
Native Aspect Ratio16:9Manufacturer
Keystone VerticalYesManufacturer
Four Corner CorrectionYes
Input Lag Ms 4k604.2Manufacturer
HDMI Inputs2Manufacturer
HDMI Version2.0Manufacturer
HDMI Max Bandwidth Gbps18Estimated
Rs232 PortYesManufacturer
Trigger 12vYesManufacturer
Width Inches12.2Manufacturer
Height Inches8.7Manufacturer
Depth Inches4.3Manufacturer
Weight Lbs6.2Manufacturer
Power Consumption W310Manufacturer

Common questions

ANSWERED FROM THE DATA

Does the ViewSonic PX748-4K need a special screen?

No UST-specific constraint — the ViewSonic PX748-4K is a conventional-throw design per its stated throw type, so standard screen materials work. In a room with ambient light, an ALR screen preserves contrast; the builder checks the projector-screen pairing either way.

How bright is the ViewSonic PX748-4K?

4,000 lumens, as claimed by the manufacturer. Brightness figures are measured in flattering picture modes, so expect less in an accurate cinema mode — they're still the right way to rank projectors against each other, just not the number you'll see on the wall.

Computed from this product’s normalized, source-tracked fields — an unstated spec reads as “can’t check”, never as a yes or a no.
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Guides for Projectors

BUYING ADVICE
The best 4K projectors for a bright living roomRead the guide →
TV or projector for your room?Read the guide →
Do you need an ALR screen for a UST projector?Read the guide →

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