Video
Product Review: Canon Realis XS50
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Written
By George Avgerakis
New, Low Cost Video Projector Beats All the Competition
in Side-By-Side Demo
Video projectors are getting really popular now.
They are increasing in quality, decreasing in price
and expanding in capabilities to project everything
from boardroom spreadsheets up to cinema quality feature
films. I'm certainly not the first video producer
to discover that the tax-deductible video projector
in my conference room can be used for popcorn and
pizza movie nights with the kids and neighbors.
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No doubt, you are thinking about getting a plasma screen or projector
for your own studio and enjoying the results long after you punch
out for the day. If that's the case, you really, really need to
spend a few minutes learning about the three kinds of projectors
on the market and what they have to offer.
It used to be a simple matter of price - the best cost the most
- but not any more! So when you go out to spend some money, you
better know what you're looking at and looking for.
Right now, I would highly recommend that you watch a little educational
Flash movie I made for JVC. You can click right HERE
to see it.
This tutorial quickly and easily describes the differences between
the three types of projector chips; LCD, DLP and LCOS (Liquid
Crystal on Silicon) and teaches you why three chips are better
than one chip in a projector design. If you could view these three
projectors side-by-side, up close and far back, you would instantly
see that the best quality is ICOS. They have superior pixel resolution
and superb color quality.
JVC invented ICOS and put it into their DILA brand projectors
for the past three years. By far, the best projectors for cinemas
are 3-chip DILA/LCOS projectors. But these projectors were large
and expensive. The one in my home theater cost $18,000 new!
Up until now, anyone wanting a low cost video projector for professional
or home use had to settle for less quality or pay upwards of $7,000
for the base model LCOS. Not any more! Canon, the master of video
lens design, has made a significant breakthrough in projector
technology with the introduction of their new Realis XS50.
Best of Both Worlds
The Realis XS50 is a three-chip LCOS projector selling for $3,999
list. And as if that wasn't enough reason to leave your unfinished
morning coffee, the projector is small and light enough to stick
under your arm (lesser than a foot-square and less than 4 inches
high) - smaller than the old 35mm Kodak slide projector! And it's
one of the quietest projectors on the market (believe me, quiet
is important during the kissing scenes).
But Canon didn't improve on the LCOS chips - in fact, they buy
them from JVC! Where Canon made their market-shattering advancement
was in how they condition the projector bulb's light BEFORE it
gets to the LCOS chips.
Although LCOS chips give the best quality image, they had one
significant drawback - something called "light leak."
If you took the time to see my tutorial above, you'll remember
that the diagram showed the light from the projector being split
into three beams for the red, green and blue LCOS chips.
Well, when the beam is split in the older LCOS projector design,
a small amount of light leaks into the projection path whenever
the image is supposed to be projecting black (where, ideally,
we don't want any light getting into the projection path).
Light leak could be reduced by pulling the projector bulb back
from the splitter, but this made the projector large and reduced
the intensity of the light. Consequently, the bulb was made larger,
more expensive and the cooling fan more noisy. Sure, you can use
a smaller bulb and push it closer to the beam splitter, but now
you get more light leak in the black areas of the video - so your
contrast is shot.
So, until Canon's Realis projector, LCOS projectors had one major
weakness - they were either weak in contrast and bright, or strong
in contrast and a bit dim. Because of light leak, you couldn't
get bright AND high contrast - the two most important quality
issues after high pixel resolution and color quality.
After years of research, using the three chip LCOS solution from
JVC, Canon developed a special pair of lenses that go BETWEEN
the projector and the beam splitter. These lenses divide the projector
bulb's output into tight, horizontal and vertical beams of light
- a kind of three-dimensional grid of rays, similar to the grid
of pixels they will eventually produce. In Canon's Realis system,
nearly every ray of light in the grid strikes the splitter's surface
at precisely the right angle to minimize light leak.
The invention of this ingenious device, which Canon calls AISYS
(Aspectual Illumination System), allows for a smaller projector
bulb, which can get placed closer to the LCOS chips, thereby making
the projector smaller, lighter and less expensive. Viola! You
get the best projector in the world for about the cost of a 3-chip
LCD projector.
On Screen Results
I recently attended a side-by-side test of four projectors, simultaneously
showing the same input, projected onto a common screen at 3 meters
throw distance. I immediately tossed off the LCD and DLP projectors,
as did most of the other witnesses to this illuminating experience.
The "screen door" effect so prominent and annoying in
the LCD example was only slightly diminished in the DLP. The next
two projectors were the Hitachi (CP-SX5600W) LCOS and the Canon
Realis.
Yep, the Hitachi was large, a bit noisy as it produced a nice
toasty flow of warm air, and, to my astonishment, noticeably inferior
to the Canon. I was suicidally depressed. The Hitachi has the
same internal design as my $18,000 monster back home. Here was
a $4,000 projector kicking its ass. The Canon was noticeably brighter
and had a lot more contrast. Scenes of reflective metal literally
jumped off the Canon's screen, while on the Hitachi, they laid
there like a lox.
When the input video switched to spreadsheet information, the
Canon jumped ahead again. Each letter and number was crisply displayed
and easily readable, whereas the competitive projectors either
muddied the text or rendered it burned beyond recognition.
The Realis features four modes that maximize the input signal
pursuant to the user's anticipated need. "Cinema" mode,
for instance, emphasizes gradation to produce realistic depth
and dimension. "Presentation" mode increases contrast
to make it easier to comprehend complex diagrams and text.
One quality issue I looked for was how fast the projector could
recover from a quick dark scene to light scene change and back
again. Many projectors hesitate their color output during quick
transitions. Realis incorporates a Dynamic Gamma Correction and
other circuitry that maximizes the projector's speed in adjusting
contrast. You see what Misters Spielberg and Coppola intended.
The right side of the projector features all the input jacks
in one convenient row. You get a wide variety of digital and analog
computer input display formats along with component, composite
and S-Video connectors. I would have like to find the high-end
professional three-BNC component tits that are offered on the
$7,000 JVC models, but who's going to say that out loud at a press
party? Just between you and me, okay? Well, you me and my wife,
who came along to see if she could do anything about that behemoth
in our living room closet.
Which brings me to one other thing. My wife, knows how jealously
I guard my position as our neighborhood's Supreme Ring Giver of
the Quality Image. One look at the Realis and she jabbed her elbow
in my ribs and said, "Joe Aragona is gonna get that Canon
for the next neighborhood cinema party - and you're toast."
Why do I bring my wife to press events? She eats like a bird.
Then she asks, "Can it project HD?"
"Yeah, sure, hell, easy," I reply, but just to be sure,
I check the specs.
One Minor Drawback
In the specs, I read a lot of good news. The brightness is rated
at 2500 ANSI lumens. The contrast ratio is 1,000:1. The Realis
SX50 hits the scales at a mere 8.6 pounds. The projector lens
is a 7.1x optical zoom lens that can project a 100-inch image
on a screen from just 9.8 feet away.
But here's a speed bump under smooth ride. The projector, which
can display in true 16:9 cinema aspect ratio, its projection resolution
is limited to 1500 x 1050 (SXGA+). This means it is excellent
for 720p HD broadcast images or playback from your JVC
HD10 high def camcorder (reviewed elsewhere on this website),
but it cannot accept 1080i high definition. The higher resolution
of 1080i may be a future capability from Canon, but for now, 1080i
enthusiasts will have to be happy with the rescaling that will
inevitably occur when you input such signals into the Realis SX50.
But, hey, whaddya want for under four large, eh?
Incidentally, for all you 480 and 575 progressive scan enthusiasts
out there (you know who you are), the Realis has special 2:3 pull-down
circuitry to convert these formats into progressive scan imagery.
So now you have another thing to save up a little money to buy.
Let's see, now. There's the molar implant, the new Borani wheels
for the car, the leaky roof over the dinette. The next neighborhood
cinema party is this Friday. I think I'll go for the Realis SX50,
right?
Hey! Don't take my word for it. You can look at the official
Canon Realis SX50 specification sheets by clicking right HERE.
We do not seem to carry this one. In and instant you'll be magically
transported to the appropriate data page of our sponsor, B&H
PhotoVideo's website.
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