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 (ANSI lumens)4000Manufacturer
Contrast ratio, dynamic12,000:1Manufacturer
HDR supportHDR, HLGManufacturer
Light source typelamp UHP
Lamp life, normal (hours)4000Manufacturer
Throw ratio, min1.13Manufacturer
Throw ratio, max1.47Manufacturer
Throw typestandardManufacturer
Optical zoom range1.3x optical zoomManufacturer
Native aspect ratio16:9Manufacturer
Vertical keystoneYesManufacturer
Four corner correctionYes
Input lag @ 4K/60 (ms)4.2Manufacturer
HDMI inputs2Manufacturer
HDMI version2.0Manufacturer
HDMI max bandwidth (Gbps)18Estimated
RS-232 portYesManufacturer
12 V triggerYesManufacturer
Width (in)12.2Manufacturer
Height (in)8.7Manufacturer
Depth (in)4.3Manufacturer
Weight (lbs)6.2Manufacturer
Power consumption (W)310Manufacturer

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 →
Not sure it’s the right projector for your room? Take the 60-second interview →

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