Sony Alpha A450 - Test Shots – ISO Performance

”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 shaded natural light.”


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This is the full frame at minimum ISO.


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Image quality at 200 ISO is very good, with no visible trace of noise.


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At 400 ISO there is some distortion in the red channel colour gradient, and a light dusting of noise.


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At 800 ISO the noise reduction kicks in and blurs out some fine detail.


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Noise is again visible at 1600 ISO.


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Noisier still at 3200 ISO.


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More noise at 6400 ISO, and colour distortion in the green channel too.


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Image quality at the maximum 12,800 ISO is very poor, with lots of noise and little fine detail.


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This is the full frame at maximum ISO.


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