Here are a few images that accurately reflect the abilities
of any given camera model. The images are altered only in
terms of size and sharpness after reduction and by the JPEG
compression used. Unless otherwise mentioned, assume that
any marbling or artifacts visible in the images are due to
the compression required to display them here. We feel however,
that they still faithfully represent the results we experienced.
STILL LIFE PHOTO
This subject is photographed in a room that has
a mix of fluorescent and incandescent light, but which is not
brightly lit. The camera's flash is used to add fill light.
The backdrop is 1.95 m (6.5 ft) from the camera.
The C-770UZ is equipped with a dual pop-up flash, and the decision as to
which of the two flashes is used depends on the focal length in use. With
the lens at the wide angle end, the upper unit fires and the image the
camera captures is perfectly lit from edge to edge.
Photo
Information
Format:
TIFF
Aperture:
f2.8
Exposure:
Program Mode
Shutter Speed:
1/30 sec.
Res.:
2288 x 1712
Flash:
On
Quality:
Uncompressed
ISO:
64
File Size:
11.2 MB
Focal Length:
38 mm (35mm Eq.)
ZOOM PHOTO
Now we zoom in on a specific area. The intent
is to test the sharpness of the image at the zoom's maximum
setting. The camera remains at the same distance as with the
preceding photo.
At the maximum telephoto setting, the camera uses the lower flash unit
to light the subject. The photo is perfectly lit, and there is no decrease
in overall brightness as is so often the case with images captured with
a long zoom lens. Likewise, the image is very sharp and reveals an excellent
level of detail.
Photo
Information
Format:
TIFF
Aperture:
f3.7
Exposure:
Program Mode
Shutter Speed:
1/320 sec.
Res.:
2288 x 1712
Flash:
On
Quality:
Uncompressed
ISO:
64
File Size:
11.2 MB
Focal Length:
380 mm (35mm
Eq.)
Super macro: aperture: f7.1, shutter speed 1/800 sec.
64 ISO, SHQ JPG.
MACRO PHOTO
The C-770UZ provides 2 macro modes, one a standard mode
that allows the zoom to be used and which allows the camera to
focus from 7 to 60 cm (2.8 in. to 2ft) when the lens is at the
wide end; and from 1.2 to 2 m (3.9 to 6.6 ft) when the lens is
at the telephoto end of its range. The other mode is a Super
Macro mode and while it locks the lens at a focal length of 10.9
mm, it allows the camera to focus on a subject 3cm from the front
element of the lens.
BUILDING PHOTO
This image is our outdoor test. The architecture
of the building, in particular the angled girders, immediately
show the presence of jaggies. The shadowed entrance can also
often reveal the quality of the exposure.
Wide angle photos with the C-770UZ reveal a slight amount of barrel distortion,
but overall the distortion is quite well corrected by the lens and should
not affect pictures. Similarly, the lens design uses LD (Low Dispersion)
glass, and it clearly helps the C-770UZ capture sharp and well-contrasted
images.
Photo
Information
Format:
TIFF
Aperture:
f4
Exposure:
Program Mode
Shutter Speed:
1/500
Resolution:
2288 x 1712
Flash:
Off
Quality:
Uncompressed
ISO:
64
File Size:
11.2 MB
Focal Length:
38 mm (35mm Eq.)
ZOOM PHOTO
The use of LD glass in the composition of the lens also minimizes the chromatic
aberration — a purple fringe that can appear on the edges of contrasting
image elements — is easily engendered by long zoom lenses such as
the C-770UZ's lens. Indeed, most photos show little or no chromatic aberration
until the subject is strongly backlit or somehow overexposed, at which
time the aberration is limited to the far edges of the image.
Photo
Information
Format:
TIFF
Aperture:
f3.7
Exposure:
Program Mode
Shutter Speed:
1/500
Resolution:
2288 x 1712
Flash:
Off
Quality:
Uncompressed
ISO:
64
File Size:
11.2 MB
Focal Length:
380 mm (35mm
Eq.)
NIGHT PHOTO
Since this camera is capable of long exposures,
a photo taken at night is included here.
Aperture: 2.8; shutter
speed: 15 sec, 64ISO.
Using the widest aperture and a
15 second exposure, 64 ISO, the setting the least sensitive to
noise, and noise reduction, the C-770UZ produces a bright and
effectively noise-free image.
The image shown here is much brighter than what can be seen with
the unaided eye. Details such as the moored boats on the opposite shore,
or the cranes on the right, are invisible to the eyes.
Increasing the sensitivity of the C-770UZ while
retaining a 15 second exposure at f2.8, yields brighter and brighter
images until at 400 ISO the image is very overexposed where the
sources of artificial lights are located. Still, even then the
dark regions in the image above start to show even more detail.
The image below is cropped from the full-size 4-megapixel photo captured
at f2.8, 15 seconds and 64 ISO.
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Test Photos
