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Sony Alpha A900 digital SLR Review
| Author | Cliff Smith |
| Published | 19th Jun 2009 |
| Manufacturer | Sony |
| Price | £1,304.35 (Exc VAT) |
| as reviewed | £1,500.00 (Inc VAT) |
| Latest Price |
| Build Quality | ![]() |
| Features | ![]() |
| Image Quality | ![]() |
| Value | ![]() |
| Overall | ![]() |

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 were shot in Raw mode and then converted using Adobe Camera Raw, with 25 percent chroma noise reduction.

This is the full frame at 100 ISO.

Not too surprisingly, flawless image quality at 100 ISO.

No noticeable difference at 200 ISO.

there is a little noise grain showing through at 400 ISO, but it's not enough to cause a problem.

Slightly more texture at 800 ISO, but the effect is not dissimilar to film grain.

There's a little colour noise creeping in at 1600 ISO, but overall quality is still good.

Noise is now very visible at 3200 ISO.

Image quality at 6400 ISO is not as good as some rivals, notably the Canon EOS 5D MkII.

This is the full frame at 6400 ISO.
Latest 4 of 16 Comments
Have your say: Leave a comment below about this article.
Cliff Smith said on 24th June 2009
peter said on 1st July 2009
It would be interesting to know how the camera perfoms as a full format DSLR. That is the gap I wish to cross from my old A1 via many digitals then a sony a100. I know David Bailey... more
Zenimr said on 6th July 2009
@peter
err.. the review is on how the A900 performs as a 'full format' DSLR because that is what it is. Whether it is worth it or not, for you, depends on how disa... more
a700user said on 25th September 2009
It's amazing how much byass there still seems to be towards Sony as a SLR Brand often by people who have never tried them. I am a Sony a700 user and was out with it recently when a... more
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Lee Marshall - I use a Sony professionally, and you're right that some people do raise an eyebrow. However I just point out to them that Sony has made many of the world's... more