ViewSonic PX749-4K

ViewSonic

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Where to buy

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Specifications · per-field provenance

● SOURCE-TRACKED

Where we have it, each spec shows where the data came from.

TechnologyDLP 1chipRetailer

Native resolution4K UHDRetailer

Brightness (ANSI lumens)4000Retailer

Contrast ratio, dynamic12,000:1 (full on/off)Retailer

HDR supportHDR, HLGRetailer

Light source typelamp UHPRetailer

Throw ratio, min1.13Retailer

Throw ratio, max1.47Retailer

Throw typestandardRetailer

Image size, min (in)30.07Retailer

Image size, max (in)300.34Retailer

Optical zoom range1.3x manual zoomRetailer

Native aspect ratio16:9Retailer

Vertical keystoneYesRetailer

HDMI inputs2Retailer

HDMI version2.0Retailer

HDMI max bandwidth (Gbps)18Estimated

RS-232 portYesRetailer

12 V triggerYesRetailer

Width (in)12.3Retailer

Height (in)4.3Retailer

Depth (in)8.7Retailer

Weight (lbs)6.6Retailer

Fan noise, normal (dB)33Retailer

Power consumption (W)310Retailer

How we verify these specs →Spotted a wrong spec? Report a correction →

Common questions

ANSWERED FROM THE DATA

Does the ViewSonic PX749-4K need a special screen?

No UST-specific constraint — the ViewSonic PX749-4K 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 PX749-4K?

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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