http://www.usa.canon.com/cusa/sna/office/projectors_visualizers/realis_sx800?pageKeyCode=writeReviewPage
REALiS SX800
18080

Features
Genuine Canon Optics
The REALiS SX800's 1.5x zoom lens suppresses the distortion of images to the maximum extent. Made possible by a lens design technology Canon has accumulated in the past, the new SX800 is able to deliver high-resolution with minimal ghosting and flare, resulting in brighter images with superior color reproduction.
The lens also features a 10:0 lens offset, which maintains the lower edge of projected images. The lower edge of the projected image matches the optical axis of the lens. This permits projection of high-quality images without the deterioration in image quality caused by keystone correction.
You can easily change the screen size to accommodate various venues and/or applications. It is now easier to set up the projector perpendicular to the screen without having to tilt the projector, or use the keystone correction.
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| Without 10:0 Lens Offset |
With 10:0 Lens Offset |
| Keystone correction required when angle is changed. Image obstructed by table when projector is moved back. |
No keystone correction required when projector is moved straight back. Simple positioning with image quality preserved. |
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