Conclusion: The splashproof, dustproof Olympus E-5 is a good option if you shoot photos and video in unfriendly environments, but with middling low-light performance and limited video-capture options it's not the best D-SLR you can buy for the money.
Pros: Takes sharp photos in good light. Splashproof and dustproof. Crisp, articulating LCD. In-camera color effects and HDR. Excellent connectivity options.
Cons: Bulky and heavy. Underwhelming low-light performance. Video capture is limited to 720p30. Slow autofocus during Live View shooting. Audible lens noise during video recording.
Summary: The Olympus E-5 is a digital SLR camera with lots of potential and plenty of speed, but it just isn't as good as competing models from Canon and Nikon. Its images aren't as well defined as we would like and noise affects photos when a high ISO speed is used. The upsides?
Pros: Fast burst mode, fast focusing, useful Live View mode and articulating screen
Cons: Noisy images, poor high ISO performance, hard to use