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Sony Alpha A330 - Test Shots - ISO Performance

By Cliff Smith
Reviewed:

Summary

Our Score

7/10

User Score

Review Price free/subscription

Over the next few pages we show a range of test shots. On this page the full size image at the minimum and maximum ISO settings have been reduced to let you see the full image, and a series of full resolution crops have taken from original images at a range of ISO settings to show the overall image quality. These pictures were taken indoors using reflected natural light.

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This is the full frame at 100 ISO. The shot is slightly over-exposed, because apparently the A330 takes the exposure reading before starting the self-timer countdown.

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Over-exposure or not, there is no visible image noise at 100 ISO.

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Still very smooth at 200 ISO.

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At 400 ISO there is visible colour noise and some loss of fine detail.

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At 800 ISO the colour gradient on the side of the red car is looking very rough.

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1600 ISO is too noisy for serious work, but would be OK for small prints.

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The same goes for 3200 ISO.

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The full frame at 3200 ISO

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