Comparison
IN1028ST vs ZH451ST
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A side-by-side look at how the InFocus IN1028ST and Optoma ZH451ST compare on specs, accuracy, room requirements, and price. No hype — just the parts of the decision a buyer actually weighs.
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Buy IN1028ST
Prices confirmed Nov 10, 2026 · we check every retailer daily
Buy ZH451ST
Prices confirmed Nov 10, 2026 · we check every retailer daily
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Full specificationsEvery spec for both, line by line
Specifications
The numbers, lined up.
Image
| Spec | IN1028ST | ZH451ST |
|---|---|---|
| Resolution | 1080p (1920×1080), 0.65-in DMD | 1080p (1920×1080) |
| Lumens | 4,000 (standard not stated) | 4,200 (ISO 21118) |
- ResolutionIN1028ST1080p (1920×1080), 0.65-in DMDZH451ST1080p (1920×1080)
- LumensIN1028ST4,000 (standard not stated)ZH451ST4,200 (ISO 21118)
Hardware
| Spec | IN1028ST | ZH451ST |
|---|---|---|
| Light Source | Laser (up to 30,000 hours) | Laser (30,000 hours) |
| Throw Ratio | 0.496:1 (fixed) | 0.496:1 (fixed) |
| Offset | 116%; no lens shift (InFocus's API datasheet and user guide; its Nemesis II PDF datasheet prints 112%) | 116% (±5%); no lens shift |
| Dimensions | 10.94 × 8.5 × 4.6 in (W × D × H) | 10.79 × 8.5 × 4.49 in (W × D × H) |
- Light SourceIN1028STLaser (up to 30,000 hours)ZH451STLaser (30,000 hours)
- Throw RatioIN1028ST0.496:1 (fixed)ZH451ST0.496:1 (fixed)
- OffsetIN1028ST116%; no lens shift (InFocus's API datasheet and user guide; its Nemesis II PDF datasheet prints 112%)ZH451ST116% (±5%); no lens shift
- DimensionsIN1028ST10.94 × 8.5 × 4.6 in (W × D × H)ZH451ST10.79 × 8.5 × 4.49 in (W × D × H)
Requirements
| Spec | IN1028ST | ZH451ST |
|---|---|---|
| Throw Distance | 100 in at about 3.6 ft (InFocus's user guide) | 100 in at about 3.6 ft (Optoma's manual) |
- Throw DistanceIN1028ST100 in at about 3.6 ft (InFocus's user guide)ZH451ST100 in at about 3.6 ft (Optoma's manual)
Performance
| Spec | IN1028ST | ZH451ST |
|---|---|---|
| Input Lag | 49.8 ms at 1080p/60Hz (InFocus datasheet) | — |
- Input LagIN1028ST49.8 ms at 1080p/60Hz (InFocus datasheet)ZH451ST—
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