
One of the initial promises of the Four Thirds system was that it would make camera bodies and lenses smaller. This has come true to an extent, but mainly for lenses. There is no denying, for example, that the super compact 9-18mm f/4-5.6 is much smaller and much lighter than an 18-36mm lens of the same nominal aperture range would be for a full-frame system, and the same goes for lenses such as the excellent 12-60mm f/2.8-4. Depth of field is a separate issue, but purely in terms of coverage, Olympus's Four Thirds lenses are generally smaller and more compact than equivalents designed for APS-C or full-frame systems. However, despite their smaller sensors, the top-end Four Thirds DSLRs - the E-1, E-30, E-3 and E-5 - have all been big, heavy, and comparatively expensive for their specification.
In terms of bulk, the E-5 is comparable with the Canon EOS 5D Mark II, which sports a sensor four times as large. Obviously the 5D II costs a lot more, but for the extra money you get more pixels, better high ISO image quality, better dynamic range, and a considerably better video mode. Yet the E-5 isn't a 'budget' camera - it is closer in cost to the Nikon D7000, Pentax K-5 and Canon EOS 7D (albeit more expensive than than all of them). Like the 5D II, the D7000, K-5 and 7D offer more versatile sensors, as well as plenty of customization and a degree of weatherproofing.
So what is the E-5? Ultimately, as we said in the introduction to this review, it is a camera aimed squarely at the Four Thirds faithful - those photographers with a solid investment in the system that can't, or simply don't want to abandon it. We suspect that this narrow band of consumers will be extremely happy with the E-5, and they should be. The E-5 is a tough and capable camera that is fun to shoot with, and makes a very agreeable companion for Olympus's excellent range of lenses. However almost a decade after the inception of the Four Thirds system, the E-5 isn't the game-changer that we always hoped Olympus might come up with. Arguably, that was the PEN series.
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