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 photos we obtained using the default settings of the
SP-350, and with the sensitivity set to 50 ISO to minimize
noise, turned out to be a touch too dark. Therefore the sensitivity
was set to Auto, which lets the camera adjust the CCD sensitivity
as needed — in this case up to 100 ISO — to maximize
the effect of the flash.
Photo Information
Format:
JPEG
Aperture:
f2.8
Exposure:
Program
Shutter Speed:
1/30 sec.
Res.:
3264 x 2448
Flash:
On
Quality:
SHQ
ISO:
100
File Size:
2.94 MB
Focal Length:
38 mm (35mm Eq.)
This increase in sensitivity had no impact on the Auto white
balance, and the image captured exhibits less than perfect
colours under this mix of incandescent and fluorescent lighting.
We can also note that this wide angle shot is not very sharp.
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.
As with the wide angle shot shown above, the zoom shot was
captured using both JPEG (SHQ) and RAW formats. And just like
the photo presented above the JPEG image turned out yellow-tinged.
While correction is possible with a JPEG image, it is much
easier and precise if the correction is applied to the RAW
file.
Using Olympus Master, supplied with the camera, the colour
balance was adjusted and the resulting image re-saved in the
TIFF format.
Photo Information
Format:
RAW
Aperture:
f4.9
Exposure:
Program
Shutter Speed:
1/100 sec.
Res.:
3264 x 2448
Flash:
On
Quality:
No compression
ISO:
50
File Size:
RAW: 11.8 MB
TIFF: 23.4 MB
Focal Length:
114 mm (35mm
Eq.)
The colour balance was corrected using the Gray Point Specification
to reestablish the colour balance, basing it on the gray border
of the photographic paper envelope, and increasing the exposure
by +0.7 EV. In addition, as can be seen below, the telephoto
image is sharp, and quite detailed.
Without using the macro mode, the SP-350 is able to focus
on a subject that is 20 cm (8 inches) from the front of the
lens when it is set to the widest angle, and 30 cm (1 ft)
at the maximum telephoto setting.
While the SP-350 is equipped with 2 Macro modes, a
Standard Macro mode and a Super Macro mode, the StandardMacro offers the same focus distances as the normal
focus mode, but optimizes the AF speed in the Macro range.
On the other hand, the Super
Macro locks the zoom at the wide angle end and allows the
camera to focus on a subject 2 cm (0.8 inch) from the front
element of the lens. At this distance the field of view the
camera captures measures approximately 3.2 cm (1.3 inch) when
measured horizontally in the frame. As the camera automatically
selects the widest aperture when set to the Program mode, the
depth of field is quite shallow. Therefore, much better images
can be had with the Aperture Priority mode, or the Manual mode
as the depth of field can be increased through the use of small
aperture such as f8.
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.
Although the ESP metering of the SP-350 usually yields good
exposures, in this case the combination of a white, glowing
sky, and the reflection of the sun's light on the beams of
the canopy conspire to make the meter slightly overexpose
the latter.
Seen at 100% scale on a monitor, this wide angle shot is
less sharp than what the camera yields as soon as the zoom
is beyond the widest angle.
Photo Information
Format:
JPEG
Aperture:
f2.8
Exposure:
Program
Shutter Speed:
1/320 sec.
Resolution:
3264 x 2448
Flash:
Off
Quality:
SHQ
ISO:
50
File Size:
3.94 MB
Focal Length:
38 mm (35mm Eq.)
ZOOM PHOTO
Zooming in on the entrance of the building, the
shadowed entrance takes on a greater importance for the metering
and can cause an overexposure of sections that are directly
lit.
Zoomed in the exposure is correct, and although the foreground
is close to overexposure, some detail remains visible. The
metering is clearly influenced by the darker entrance, and
the exposures captures an excellent level of detail in that
area, as even with a 3X zoom lens, the little sign (a part
is missing) on the front door is legible.
Also worth noting, just as the wide angle shot showed no
barrel distortion, the zoom shot shows no pincushion distortion.
Photo Information
Format:
JPEG
Aperture:
f4.9
Exposure:
Program
Shutter Speed:
1/50 sec.
Resolution:
3264 x 2448
Flash:
Off
Quality:
SHQ
ISO:
50
File Size:
3.82 MB
Focal Length:
114 mm (35mm
Eq.)
NIGHT PHOTO
Since this camera is capable of long exposures, a photo taken at night is included here.
Aperture: f4.5; shutter
speed: 15 sec., 50 ISO.
The SP-350 offers a Night
Scene mode that allows setting not only the sensitivity,
but also allows setting the white balance. However it is limited
to a maximum exposure time of 4 seconds, and is therefore
best suited to very brightly-lit night scenes if a low sensitivity
such as 50 ISO is going to be used to control noise.
The Manual mode, on the other hand, is very flexible
and offers a maximum timed exposure of 15 seconds.
In addition, the Manual mode
provides a Bulb mode that has an 8 minute
limit, but which requires the shutter release to be maintained
pressed in (at least with our test camera) unless the optional
remote control is used.
Regardless, with this subject a 15 second exposure
time and an aperture of f4.5 are sufficient to capture a bright
and excellent image. Noise reduction, using a dark frame process*,
is applied automatically (once enabled in the menu) and the
result is an interesting image that exhibits no serious loss
of detail.
*
A dark frame noise reduction system works by capturing
a second frame of the same duration as the long
exposure, and then using the noise captured during
the second "dark" exposure to eliminate
it from the first image prior to the image being
saved.
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