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The JVC GC QX5HD A Lot More Than Meets The Eye
By Ingrid S. Krampe September, 2001
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Wide Range mode uses two exposures to expand a camera’s
dynamic range: the first (left) optimized to capture the
bright portions of a scene, the second (right) to capture
detail in the dark or shadow areas of a scene. The camera
then combines the two exposures to create a file that
has detail in both the highlight and shadow areas. This
shot of white tapioca pearls and dried wakame improved
dramatically using the Wide Range mode.
Photos © 2001, Ingrid S. Krampe, All Rights Reserved
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In the prosumer market, digital
point-and-shoots have reached a sort of consensual plateau--where certain
capabilities are standard and even expected. Just about all of them
have an LCD preview screen and an optical viewfinder, instant playback
and delayed shutoff, several resolution modes, an optical zoom, some
kind of a variable built-in flash, video mode, and television review
capabilities.
For some time now, resolution
in these cameras has been climbing steadily, and recently when I skimmed
the Sunday paper there were several name-brand digital cameras touting
3-plus megapixel CCDs within the prosumer and even consumer price range.
So what makes a digital point-and-shoot stand out in this crowd? Professional
options, as well as manual capabilities to provide the photographer
with the necessary tools to create quality imagery in their own signature
style.
Pro Features
Although the JVC GC-QX5HD may look like your basic consumer-type, point-and-shoot,
it makes the grade by providing all of the standard options, as well
as a 3.34 megapixel CCD, auto and manual focusing, a modified aperture
priority (Iris Control), and a myriad of interesting and versatile professional
options.
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The Macro mode on the JVC GC-QX5HD was extremely close (2-50cm):
close enough to capture and clearly identify particles in
this pile of dime-store glitter. |
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Among the professional options,
Pixel Shift mode allows you to double the resolution with two exposures.
Available only for still photography, the camera shifts the CCD by one
pixel for the second exposure, providing the photographer a whopping 6-plus
megapixel file.
Wide Range mode also uses two
exposures, but this time the emphasis is on expanding the dynamic range.
One exposure is adjusted for the bright portions of a scene, the second
is adjusted to capture detail in the dark or shadow areas of a scene.
The camera then combines the two exposures to create a file that has detail
in both the highlight and shadow areas.
To check out the dynamic range,
I went to the local farmer’s market in search of my favorite subject (food).
To check out the highlight area a pile of tapioca pearls seemed like a
good subject--but the dark shadow area end seemed a bit more of a challenge.
While chocolate came to mind it was quickly nixed for fear that I would
eventually be tempted to eat the props. I finally saw a bag of shredded
wakame (seaweed), and knew I had found what I needed. No chance of temptation
there at all. The dynamic range improved dramatically by taking two exposures--one
for the highlights and one for the shadows, but we had to try it several
times to make it work for us.
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This fruit was captured using the QX5’s Noise Reduction
mode. This option captures several exposures and then extracts
signal components and eliminates noise components from the
large amount of data. This can prove to be a good option
when shooting still life scenarios where noise may prove
to be a problem. |
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A third professional mode that
improves quality beyond the normal range of a prosumer digital camera
is the Noise Reduction mode. Again, like Wide Range and Pixel Shift for
still photography, it requires more than one (several in this case) exposures.
Addressing an important concern in the digital photography environment,
this option is designed to lessen noise problems by capturing a large
amount of information from which it extracts signal components and eliminates
the noise that plagues some digital cameras in this price range. We used
this option to capture several pieces of fruit and found that improvement
was minimal until we enlarged it--then the improvements became apparent,
specifically in the shadow areas. This can prove to be a good option when
shooting still life scenarios where noise may prove to be a problem.
For anyone needing to scan
film, the QX5 comes with a film-copying adapter that allows you to "scan"
35mm processed negatives and unmounted positives. We didn’t have any unmounted
transparency film so we opted to check it out using negative film. With
the camera set on Manual, we selected the Film mode and then selected
the appropriate film copy settings. We used a light table for backlighting
and the results were interesting albeit not accurate. Carla anxiously
waiting for the bar to open with the curlers still in her hair turned
a little off-color, although the red neon sign stayed true amidst the
blue-hued scene. Funny thing is, I liked this rendition better than the
original, but we do not recommend you use the QX5 as a scanner.
We did not have the opportunity
to check out the Collage option, which according to JVC allows the user
to place a subject in prerecorded background (both images must be taken
with the QX5). It’s simply a matter of selecting the Collage mode, then
photographing the background, and then photographing the subject in front
of a white background. The camera does the rest, however, the subject
cannot wear white clothing and flash is not available for this option.
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For anyone needing to scan film, the QX5 comes with a film-copying
adapter that allows you to "scan" 35mm processed negatives
and unmounted transparencies. The greens in the shot of
Carla anxiously waiting for the bar to open with the curlers
still in her hair turned blue as did her skin tone. Interestingly
the red neon sign stayed true amidst the blue-hued scene.
Funny thing is, I liked this rendition better than the original,
but we do not recommend you use the QX5 as a scanner.
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A Versatile And Responsive
Point-And-Shoot
If you need to travel light, a little digital camera like the JVC GC-QX5HD
may be your perfect companion. This little unit carries a 3.34 megapixel
CCD in a body that weighs just a bit more than half a pound and measures
approximately 4.5x3x3". The camera was easy to use, light, and relatively
quick compared to many of the digital cameras we have handled, and the
automatic shutoff, adjustable from 1-3 minutes, was very convenient. However,
the battery died in less than an hour during heavy use, and the LCD screen
was difficult to see in most outdoor lighting situations, although both
of these problems are inherent problems to most digital point-and-shoots.
The QX5 offers excellent macro
shooting capabilities, with close focus from just 2-50cm. The 2.3x optical
zoom (37-86mm equivalent) is a good range for many applications. And we’d
like to note that the 2.3x zoom is optical (not digital) providing full
resolution along the zoom range--unlike digital zooms that merely enlarge
and crop the center of the frame, diminishing image quality in the transition.
On single shot the QX5 offers three compression options (standard, fine,
no compression), and three resolution options (2032x1536, 1024x768, and
640x480) that can be easily adjusted by pressing the Display button on
the back of the camera while it is set on A (Automatic). JVC refers to
these settings as frame size rather than resolution, which may be a bit
confusing if you are used to other digital point-and-shoots.
Playback is simple and immediate
on the 2" polysilicon TFT 200,000 pixel LCD screen on the back of the
camera. There are several Display modes available, including full screen
and a six-indexed picture screen. Brightness of the LCD screen is adjustable
and images can be protected from accidental erasure. JVC also provides
the GV-SP2, an optional printer that allows the user to print directly
from the QX5 via an optional printer cable. Via the camera’s menu you
can print both bordered and borderless prints, multiple copies, as well
as thumbnail prints and your own photo stickers.
We found the JVC GC-QX5HD to
be a versatile point-and-shoot with some very impressive professional
options. For anyone needing a responsive little digital camera with high-resolution
capabilities the QX5 is worth looking into, but make sure you get an extra
battery if you are planning on using it on location. The MSRP is $1299.95,
and you can check it out at: www.jvc.com
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Technical Specifications
CCD Resolution: 3.34 megapixel CCD
Storage: SmartMedia (up to 64MB)
Lens: 2.3x optical zoom (37-86mm equivalent)
ISO: 80/160/320
Metering: Multi and Spot
Flash: Built-In, auto/redeye prevention/forced/disabled
Shutter: 2 sec to 1/450 sec
F/Value: f/2.8-3.8 to f/11
Weight/Size: .64 lbs and 43/8x211/10x23/8"
Print Format: DPOF compatible
Monitor: 2", polysilicon TFT (200,000 pixel)
White Balance: Auto/Manual
Operating Modes: Still picture, video
Resolution: still--(2032x1536, 1024x768, 640x480)
Compression Modes: standard, fine, and no compression
Moving Pictures: 160x120 pixels, 20 sec, original JVC
format
Macro Feature: 2-50cm
Focus: Auto/Manual
Manual Exposure Compensation: +/-2.0 EV (in 0.5 EV increments)
Self-Timer: 1-8 sec
Power: Rechargeable lithium battery
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