Sony's latest Single Lens Transparent ('SLT') camera - the Alpha A55 - adds GPS and a super-fast 10fps burst rate. Is the Sony A55 the dawn of a new digital camera revolution?

Product Overview

Overall rating:


Sony Alpha A55

Overall score:91%
Image Quality:85%


  • Super-fast continuous focus burst shooting, GPS, excellent 1080i
  • HD movie autofocus


  • Widescreen ratio LCD, EVF not for everyone


Sony Alpha A55 Review


Price as reviewed:


Value & Verdict

Sony Alpha A55 review – Value & Verdict

Sony A55 review – Value

At the £700 price point there’s nothing else 
on the market that can match the 10fps continuous focus – a notable benefit of the 
SLT technology that even out-performs (in terms of speed, at least) the Nikon D300s. However, there are some fairly big 
differences in the level of control the A55 offers compared to what a professional DSLR can provide, but the difference in prices more 
than justifies this.

Sony Alpha SLT-A55 sample image - Bath cathedralThose looking for 
super-fast shooting will be suitably impressed and when considering the high resolution, image stabilisation, GPS and movie mode, 
the A55 and, indeed, the A33 look to be among the most rewarding and valuable models available.

Sony A55 review – Verdict

Sony’s new SLT technology is highly impressive and offers a cost-effective way to achieve super-fast autofocus with an impressive burst rate. Indeed this could be the first stepping-stone to the end of traditional DSLRs as we know them.

Although the electronic viewfinder may not be to everyone’s tastes and isn’t especially impressive in low light, these are relatively small hurdles when considering just what the A55 can do. 
In any case, we’re sure future models 
will improve the EVF’s performance in low-light.

This is a very innovative camera and there is currently nothing else out there (save the Sony A33) that can compete 
on quite the same level. The autofocus 
in HD movie mode takes away many 
of the issues that DSLR cameras would otherwise suffer from, while general performance is impressive. Additional touches, such as the built-in GPS are 
a further nod towards just how technologically advanced the A55 is.
Overall this is quite an achievement that gets a big thumbs up.


Built-in Flash:Yes, GN10
Lens Mount:Sony A-mount
White Balance:Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Setting the color temperature
Memory Card:SD (HC/XC)
Exposure Comp:Yes, ±2EV (in 1/3 stops)
Cable Release:Remote release
Compression:Fine or Standard (JPEG)
PC Socket:No
Viewfinder Type:1.15M-dot EVF
Output Size:4912 x 3264
LCD:3in, 921k-dot, tilt-angle, TruBlack LCD
Colour Temp Control:2500 – 9900 Kelvin
Field of View:100%
AF Points:15-point system with 3 cross-type sensors
White Balance Bracket:Yes, 3 frames, Selectable 2 steps
Sensor:16.2 megapixels Exmor APS HD CMOS sensor
Focal Length Mag:1.5x
Max Flash Sync:1/160th sec
DoF Prview:Yes
Metering System:1200-zone evaluative metering
Dust Reduction:Yes, Charge protection coating on Low-Pass Filter and electromagnetic vibration mechanism
Built-in Image Stabilisation:Yes, sensor-based Super SteadyShot
Movie Mode:Yes, 1080i HD capture
Live Mode:Yes
Exposure Modes:P, A, S, M, Continuous Advance Priority AE, Sweep Panorama, Scene, Flash Off, Auto, Auto+
Weight:441g (no battery or card)
Connectivity:HDMI (c-type), USB (standard mini connection)
Power:Rechargeable li-ion battery
File Format:Raw, JPEG, RAW + JPEG
Dimensions:124.4 x 92 x 84.7mm
Shutter Speeds:30 – 1/4000th second (plus Bulb)
Focusing Modes:Single, Automatic, Continuous, Manual Focus
Drive Mode:Single, Continuous, 10 seconds and 2 seconds Self-timer, max 7fps in Continuous Advance Priority AE, max 6fps in Drive Mode
Colour Space:sRGB, Adobe RGB
  1. 1. Sony Alpha A55 review - Features
  2. 2. How Single Lens Translucent Works
  3. 3. Design & Performance
  4. 4. Image Quality
  5. 5. Movie/Video Mode & Quality
  6. 6. Value & Verdict
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