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||Full HD 3D|
|Weight:|| 15.4 lbs|
|Lens Shift:||H + V|
|Lamp Life:||20,000 Hrs|
Composite, Component, VGA In, HDMI 1.4a (x2), USB, RS232, 12-Volt Trigger (x2),
480i, 480p, 720p, 1080i, 1080p/60, 1080p/24
Review: Optoma HD91
LED 1080p Home Theater Projector
March 26, 2014
The Optoma HD91 is among the first LED-based projectors to be built specifically for home theater use. When you view it in this light, it is a remarkable product. It combines the refined cinema image that enthusiasts have come to expect with all of the modern features and functions found in lamp-based models, then adds an LED light engine with an estimated life of 20,000 hours.
Of course, nothing is free. In the case of the HD91, the trade-off is light output. Compared to other home theater projectors, the HD91's 1000-lumen spec is already quite low, and the reality of its 517-lumen Cinema mode is doubly so. It limits your placement options despite the projector's excellent 1.9:1 zoom lens and can in some situations effectively confine the projector to smaller screen sizes.
With televisions getting larger and larger, the main advantage of projectors is their ability to use very large screen sizes. But the HD91's relatively low light output means that, should you mount the projector in the back of the room, it is limited to screen sizes that can be matched by a large television.
Don't be mistaken: the HD91 is a great home theater projector, and the image it produces is definitely competitive with lamp-based projector models. You just need to take care when mounting and installing the projector to ensure that you retain enough brightness to light your desired screen size. And with a little bit of work, it is still possible to put the HD91 on a 120" diagonal screen. So if you're finally ready to stop buying replacement lamps, the HD91 might just be the projector for you.
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