STEP 1: Match your screen size to your room
The first thing you always want to do before setting up your projector
is determine the size of the room and the people filling it. The more
people you have in the room the larger you want the screen to be. The
Canon LV-7225 has a built-in wide-angle lens that gives you a very
large screen size with a considerably short throw distance. That means
you can get a 100-inch diagonal screen from 8.2 feet away, a real boon
if you get stuck with a tiny space. Do you present at universities or
schools? Use the projector’s green board mode to project directly onto
the chalkboard. And don’t bother making color adjustments in this mode:
the LV-7225 does it automatically to give you more natural results.
STEP 2: Plug in to your source, wherever you are
The best presentations take advantage of the maximum display range of
your laptop or desktop computer, so it pays to have a projector with a
DVI input. DVI is standard on Macintosh computers and is showing up
with greater regularity in new PC models. If you don’t have DVI on your
laptop, don’t worry: You can use the LV-7225’s VGA input for analog
display. Presenting abroad? The LV-7225 is equipped with multi-voltage
inputs that handle most electrical outlets outside the United States.
The projector also has S-video, composite video and component video
inputs for showing video clips in NTSC or PAL. Its progressive-scan
circuitry converts a 480i (NTSC) or 575i (PAL) signal to progressive
using a 2:3 pull down for improved image quality when showing media
that originated on film.
STEP 3: Check your white balance
When showing both video and still images, run a test before your
presentation to check your white balance. Hit the menu button on the
remote, and scroll to the image correction section. You’ll find
controls for color temperature, brightness and contrast. Lighten or
deepen your red, green or blue tones until you get more accurate color
on screen.
STEP 4: Keystone your screen
Once you’ve color-corrected your image and focused your lens, make sure
your screen is balanced. If you’re projecting onto a wall that isn’t
completely flat, or if the projector has to sit on an uneven surface,
you’ll need to use the horizontal and vertical keystone features to
adjust the shape of the display.
STEP 5: Don’t pack up too early
Though it may sound obvious, it pays to make sure you’ve turned off the
projector (sometimes, this means hitting the power button twice) after
you finish. But don’t get packing just yet; the lamp has to cool down
completely before you pack up the projector or even unplug it from the
wall. Doing this before it’s time could shorten your lamp life
significantly, so it’s wise to wait. You’ll know when it’s time to hit
the road: The cooling fans will automatically turn off when the lamp is
cool.
YOUR GUIDE
Ricardo Chen
Manager of Technical Marketing & Sales Training
Consumer Imaging Group’s Video Division, Canon U.S.A.
Ricardo says keep in mind…
Never touch the lamp. A projection lamp is delicate and even the
briefest contact with human skin will leave an oily residue that will
ruin the lamp (besides, lamps get so hot they could literally melt your
fingers.) Better projectors, like the LV-7225, house their lamps in a
sealed lamp assembly, which protects both the lamp and your precious
digits.
One of the most important things you can do to extend the life of a
projection lamp is to regularly clean the filters. Clean your fan’s
filters every 2-3 weeks. This will give the lamp plenty of ventilation
to maintain an acceptable operating temperature. On the same note,
avoid smoky and dusty environments, if possible.
When deciding on which projector to use, remember that native
resolution is just as important as brightness. The resolution is what
gives you a clear image.
Canon U.S.A., Inc.
www.usa.canon.com
1 Canon Plaza
Lake Success, NY 11042
ph. 516.328.5000