Sony Cyber-shot DSC-P150 Review
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Review
Date: Nov 8, 2004 |
IMAGE QUALITY
The Sony Cyber-shot DSC-P150 is a digital
camera targeted to point-and-shoot photographers.
It has 7.2 megapixel resolution on a 1/1.8 in.
CCD image sensor and a Carl Zeiss Vario-Tessar
lens. Images are clean of chromatic aberration
(especially the purple fringing we are so fond
of pointing out) and also appear to be noise free
at ISO 100.
| 3x
Optical Zoom |
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 |
Wide-angle
7.9mm
(38mm, 35mm equivalent) |
Telephoto
23.7mm
(114mm, 35mm equivalent) |
In the above pictures, we show the coverage for
wide-angle 7.9mm (38mm), and medium telephoto
23.7mm (114mm). The medium telephoto focal length
is perfect for portraits.
| Macro |
 |
7.9mm, Program AE, Multi
Pattern, 1/60 sec., F2.8, ISO 100
Macro |
In Macro mode, you can get as close as 10 cm
(3.9 in.) to your subject (measured from the front
of the extended lens).
| Auto White Balance
Indoors |
 |
 |
 |
| AWB |
WB = Fluorescent |
AWB Using Flash |
As the above three pictures show, the auto white
balance (AWB) indoors under artificial lighting
is something Sony could improve on. Under fluorescent
light, and without flash, the P150 is not able
to reproduce a correct white using AWB or any
of the preset WB settings. It is a bit better
under preset Tungsten (not shown). Fortunately,
The P150 will obtain a correct white balance when
the onboard flash is fired, whether using AWB
or Flash WB. AWB works very well in natural light.
| ISO
Comparisons |
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| ISO 100 |
 |
 |
| ISO 200 |
ISO 400 |
The Sony P150 has 3 ISO settings going from ISO
100 to ISO 400. The 100%
crops above (area delimited by the white rectangle)
demonstrate the noise at the available ISO Speeds
of 100, 200, and 400. At ISO 100, noise is under
control. At ISO 200, noise is still very acceptable,
and becomes quite visible at ISO 400.
| Chromatic
Aberrations |
 |
The above shot usually always produces some purple
fringing where the light streams through the skylights,
but we could not find any!
The P150 provides a Manual mode that, together
with the display of an EV value indicating over-
or under-exposure, gives some measure of exposure
flexibility. In effect, this allows the photographer
to have a "manual" Shutter-Priority
and Aperture-Priority mode. In Manual mode, shutter
speed ranges from 30-1/1,000 sec., which is excellent!
However, there are regretably only 2 aperture
values available, which therefore negates this
wide shutter speed range, i.e. you are able to
only select from the 2 shutter speeds that give
correct exposure with the 2 available apertures
(which also probably explains why it uses a slow
shutter speed indoors). The long shutter speeds
make night photography possible.
Overall, the image quality of the P150 is very
good. As the sample images show, the Carl Zeiss
lens is excellent and able to capture very fine
detail. Unlike the P100 which demonstrated some
loss of detail in areas with an expanse of colour,
image detail is very well preserved in the P150.
The Sony P150, like the P100, is a step above
the previous generation P series digital camera
Sony has put out to date. Image quality is better,
image compression is less, and the size is smaller.
Personally, using it strictly as a P&S digital
camera, I find the Sony P150 image quality to
be excellent: no purple fringing, noise under
control, excellent image detail, and no post-processing
necessary in the majority of the pictures I have
taken. For best results, set the P150 to Program
AE, ISO 100, and Multi-Pattern metering.
The pictures in the Sony Cyber-shot DSC-P150
Photo Gallery page provide a good sample of
what the camera is capable of. I have provided
samples at 800x600 pixels, compressed to Quality
60/100 in Photoshop Elements (original image size
at 3072x2304 pixels).
You can safely assume that most macro shots
and slow shutter speed shots required the use
of a tripod. Any image that is adjusted for levels
in Photoshop has "_adjusted" appended
to the file name. Other suffixes are self-explanatory.
Images used as navigation background may have
been adjusted and the orientation flipped horizontally.
I have defaulted the image size to 800x600 pixels.
For those who have their monitor resolution set
to 1024x728 pixels, everything should snugly fit
and you should not have to scroll to see the whole
image. If your monitor is set to 800x600 pixels
resolution, start the slide show and then scroll
to the right to position the image within your
screen width. Then, press F11 (if you are using
Internet Explorer) to switch to full screen mode,
and the image should fill your screen nicely.
Press F11 again at any time to switch your monitor
display back to normal mode.
To return to this page from the Photo Gallery,
click on the animated graphics of the camera.
Please open and download the original size version
only if you need to and only once
to your hard drive -- and save me some precious
bandwidth. Thanks!
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