Canon’s triple-digit EOS cameras have long been the yardstick by which consumer digital SLRs are measured. The 550D is fairly pricey, but with the same 18-megapixel resolution, metering system and 1080p video mode as the upmarket 60D and 7D, it’s more of a cut-price enthusiasts’ model than an overpriced entry-level SLR.
The sophisticated 63-point iFCL metering system is the same as the 7D’s, and it’s much better than the older 500D’s 35-point system. It uses two sensors to gather the colour and luminance information that helps to calculate the correct exposure settings. It also takes subject distance information from the auto-focus system and balances the exposure based on that.
The single DIGIC 4 image processor reduces the 550D’s burst rate to 3.7fps, down from 8fps on the 7D, but up from the 500D’s 3.4fps. The 550D can shoot 34 fine JPEG or six RAW frames at this speed. That’s fewer that the 500D’s 170 fine JPEG or nine RAW frames.
The 550D supports a range of shutter speeds from 30 seconds to 1/4,000th of a second, as well as a bulb mode for longer exposures. ISO sensitivity ranges from 100 to 6400 and is expandable to 12800. The auto-focus system has nine points, with the centre being a cross-type f/5.6 point with extra sensitivity at f/2.8.
Most of the time the AF system worked well and focuses very quickly, but occasionally we found that it would front focus. This is where the camera focuses slightly in front of your intended subject and is the same issue we saw with both the 450D and 500D. It isn’t a major problem if you’re using relatively small apertures, but if you’re looking to buy fast glass (with a maximum aperture of f/2.8 or larger), it’s something to watch out for.
- 18 MP APS-C CMOS sensor
- DIGIC 4
- ISO 100-6400, H:12800
- Up to 3.7fps shooting
- Full HD movies
- 7.7cm (3.0”) 3:2 Clear View LCD with 1,040k dots
- iFCL metering
- Quick Control screen
- Ext. Mic socket
- Movie crop
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