The Sony ALpha SLT-A33 and A55, are the first cameras to incorporate Sony's translucent mirror design. The Single Lens Translucent (SLT) cameras offer live view with full-time fast phase-detection AF whether in stills or movie shooting. This is achieved by having a fixed, semi-transparent mirror that redirects a small amount of light onto the AF sensor while allowing the rest through onto the main imaging sensor. The A55 is built around a 16.2MP sensor while the A33 features a 14.2MP unit. Both feature 3.0" articulated LCDs, full HD video recording and ISO sensitivity up to 12,800, while the A55 also features built-in GPS. As well as being highly innovative, both cameras are fast, responsive and capable of excellent image quality.
|Body type||Compact SLR|
|Max resolution||4912 x 3264|
|Effective pixels||16 megapixels|
|Sensor size||APS-C (23.5 x 15.6 mm)|
|ISO||Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800, (25600 with boost)|
|Lens mount||Sony/Minolta Alpha|
|Focal length mult.||1.5×|
|Articulated LCD||Fully articulated|
|Max shutter speed||1/4000 sec|
|Format||MPEG-4, AVCHD, H.264|
|Storage types||SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo|
|USB||USB 2.0 (480 Mbit/sec)|
|Weight (inc. batteries)||500 g (1.10 lb / 17.64 oz)|
|Dimensions||124 x 92 x 85 mm (4.88 x 3.62 x 3.35″)|
The Sony SLT-A55 is an excellent all-rounder with a comprehensive feature set. The translucent mirror technology gives it an innovative touch and the best live view AF on the market. Continuous-shooting performance is the best in its class--just don't plan on shooting the Olympics with it.
Good for: Feature-hungry photographers from entry- to enthusiast level
Not so good for: Anyone who expects real pro-level sports camera performance at a budget price
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