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Canon IXUS 990 IS - Test Shots - ISO Performance

By Cliff Smith

Reviewed:

Summary

Our Score:

8

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 artificial light, with white balance set for the back board of the scene.

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This is the full frame at 80 ISO.

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At the minimum ISO setting the image quality is superb, with smooth tonal gradients and no sign of image noise.

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The results are also pretty much perfect at 100 ISO.

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Still no real problems at 200 ISO.

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The noise reduction really kicks in at 400 ISO, but the results are very good, with excellent colour and only minor loss of detail.

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More detail is lost at 800 ISO, and darker areas are quite blotchy.

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Image quality is much lower at 1600 ISO, with considerable loss of fine detail, but still the exposure and colour are very good.

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This is the full frame at 1600 ISO.

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joose

August 11, 2009, 2:15 pm

It would of been good to see some portrait shots to compare Auto and other settings if there is an issue with this camera.

Cliff Smith

August 11, 2009, 4:05 pm

I have just such a shot, but I don't have the subject's permission to publish it. I'll see if I can get some others before the camera has to go back.

joose

August 11, 2009, 4:41 pm

Great stuff. Thanks.

TheMonkeyHead

August 11, 2009, 10:14 pm

Sometimes things just fall into place. I have limited manual dexterity, £260 burning a hole in my pocket and bit of a soft spot for My Little Pony.

andersemanuel

August 13, 2009, 12:22 am

reviewers comment on ixus being as much about looks as about the photos it produces, falls flat on it 's face when you have used and compared all the competitors, and still come back to this series. Just the picture quality and how canon handles light and dark areas are reasons enough. good looks is just a bonus. and "optical viewfinder a much requested feature" c'mon.. on a pocket camera most prefer a larger screen.. keep up the good work!

GulfFish

August 14, 2009, 8:29 pm

Purchased an SD990IS from Amazon four weeks ago. The design and build quality are excellent as you point out. The image quality is not up to par. Did a series of test shots with the SD 990 and my Fiji F30, same subjects and conditions. The F30 images in all cases were superior. The reproduced colors were closer to true and less grany when pushed to zoom at 125%.And, as you would expect, the F30 is vastly superior in low light, high ISO conditions. The 990 went back to Amazon. Just not worth the money.

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