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Sony CyberShot DSC-W70 Review

Author	Cliff Smith
Published	20th Jan 2007
Manufacturer	Sony
Price	£132.78 (Exc VAT)
as reviewed	£152.70 (Inc VAT)
Latest Price	Click here

Features
Image Quality
Value
Overall

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A range of test shots are shown over the next few pages. Here, the full size image has been reduced for bandwidth purposes, and a crop taken from the original full resolution image has been placed below it in order for you to gain an appreciation of the overall quality.

In this ISO test shot, taken at a range of about one metre using the maximum telephoto zoom setting, you can clearly see the pincushion distortion. The lines of chips on this circuit board should be straight and parallel, but instead the lines around the edges of the frame bend inwards towards the middle. This is caused by poor lens design, not something normally associated with the Carl Zeiss name.

1 sec, f/5.2, ISO 100
At the minimum setting of 100 ISO the image is nice and sharp, with no trace of image noise.

1/2 sec, f/5.2, ISO 200
Already at just 200 ISO there are patches of random red and green colour noise on the darker areas of the image.

1/4 sec, f/5.2, ISO400
400 ISO and the noise is worse, spreading into the mid-tone areas.

1/8 sec, f/5.2, ISO800
At 800 ISO the image noise is now very bad, and would certainly show up on even a small print.

1/10 sec, f/5.2, ISO1000
A small increase in speed to the maximum 1000 ISO sees a corresponding increase in noise, and colour reproduction is also compromised.

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