knöll systems - advanced home products
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1/21/2005 2:18 PM
HD272 Throw Distance
Thank you for choosing Knöll projectors! The HD272 is a state-of-the-art HDTV projector with high
resolution 16:9 digital light processing chips to give bright clear images and display movies in a
format similar to the one they were filmed in. Its Carl Zeiss lens allows for a wide level amount of
zooming (1:1.4).
The HD272 projector is designed only for use with 16:9 aspect ratio screens. 4:3 images can safely
be displayed on the 16:9 screens. Some screens have moveable screen width curtains that can be
controlled by the HD272 dual trigger outputs.
The Knöll CM25 ceiling mount kit is easy to install and swivels for exact placement. It drops the
projector about 3" and the projector lens is about 6" from the ceiling. If more of a drop is needed,
the CM20+6 extender adds an extra 6" drop. As many CM20+6 can be added as needed.
The most frequently asked questions concerning DLP projectors are:
How much can the projector be tilted down (when ceiling mounted) or up (when floor mounted)?
About 20 degrees. The HD272 has a digital adjustable keystone but for best overall image the
HD272 projector should ideally be level if the screen is vertical (which is usually the case).
Is the width of the 4:3 image the same as the 16:9 image?
No. The HD272 has 16:9 imager and displays 16:9 or widescreen images using its full width of
1280 pixels by 720 pixels high. When displaying 4:3 images it still uses all of its 720 pixels in height
but the image width is reduced to 960 pixels. Black bars are added on the sides of the image.
Projection throw distances are the maximum and minimum horizontal distances
from the projector lens to the screen. If the projector is mounted level
(this is
strongly recommended)
the image will drop (ceiling mounted projector) or rise
(floor mounted projector).
