Overall Rating:

3

Sony Alpha 33


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Manufacturer:

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Price as Reviewed:

£569.99

With its use of translucent mirror technology in the Alpha 33, Sony has evolved the way that its digital cameras focus. But how much does the new system really improve on the SLR? We put the Sony Alpha 33 to the test

Our verdict

No longer restricted to optical viewfinders or the mechanisms required for film transportation, camera manufacturers have gone back to the drawing board to 
see how digital technology can evolve camera design. 
Sony has made a bold choice by using a fixed mirror and 
an EVF, which may alienate some purists. However, the system works well, and it can only get better in future cameras as the technology is further refined.

There will be fears about the loss of around 30% of the light hitting the sensor, but the metering and processing take this into account and it doesn’t have a negative effect on image quality. As a result, the usable sensitivity range of ISO 100-1600 is on a par with the Alpha 33’s competitors.

Although the Alpha 33 may seem a little pricey at £649 with an 18-55mm lens, it is crammed full of features, many of which aren’t found it its competitors, such as the 3D sweep panorama and the HDR shooting mode. However, it is obviously the high frame rate and phase-detection AF in Live View and video that steal the show.

While the image quality may be better from the Canon EOS 550D, for those who want to photograph moving subjects, such as sports or wildlife, the Alpha 33 is an excellent camera. In fact, it can’t be bettered for its price.

Sony Alpha 33 – Key features

Flash hotshoe
Like other Sony Alpha cameras, the Alpha 33 uses Sony’s proprietary flash mount. This is the same hotshoe that was used on Konica Minolta SLR cameras.

Articulated screen
For the first time in an Alpha-series camera, the screen folds down and can be rotated through 270° below the camera.

Sweep panorama
Like the NEX series of cameras, the Alpha 33 has sweep panorama mode, including the 3D option. A panoramic image is created by moving the camera in a sweeping motion while taking a series 
of images. When using the 3D option, 
a 3D image is created that can be played back on a 3D television.

Face detection
Face detection and smile shutter are features we have previously seen in the Alpha 500 and 550, and they make a return in the Alpha 33. Not only does the face detection prioritise faces when exposing and focusing images, but the smile shutter mode also forces the camera to take an image when it detects a smiling face.

HDR
When shooting JPEG images, it is possible to create HDR images in-camera. A single press of the shutter takes three images. The first of these is the standard exposure, with the other two images being up to 3EV either side of this. The Alpha 33 then aligns and merges these images together to create an HDR image.

Translucent mirror
Although the mirror is fixed in position when shooting, there is an option in the custom menu to unlock and raise the mirror to allow access to the sensor for cleaning. The mirror is also far enough away from the sensor that Sony states it will not cause any issues with dust being visible in images.

Direct record
Video capture is an important feature of the Alpha 33, and recording can be started and stopped by using the dedicated movie record button.

Eye sensor
This sensor detects when you hold the viewfinder to your eye and switches the viewfinder on and the screen off, and vice versa.

  • Shutter Type: Electronically controlled focal plane
  • Built-in Flash: Yes GN 10m @ ISO 100
  • Dioptre Adjustment: ±4
  • Memory Card: SD/SDHC/SDXC/Memory Stick Pro Duo
  • Output Size: 4592x3056 pixels
  • Viewfinder Type: EVF with 1.15 million dots (equivalent)
  • LCD: 3in widescreen TFT LCD screen with 921,600 dots
  • Field of View: 100%
  • White Balance Bracket: 3 Frames over 2 steps
  • AF Points: 15 automatically selectable points with 3 cross-type sensors
  • Focal Length Mag: 1.5x
  • Max Flash Sync: 1/160sec
  • Sensor: APS-C-size CMOS sensor with 14.2 million effective pixels
  • Exposure Modes: PASM, auto+, 8 scene modes
  • Weight: 433g (without battery or card/s)
  • Power: Rechargeable Li-Ion battery NP-FW50 (supplied)
  • File Format: Raw, JPEG, raw + JPEG simultaneously
  • Shutter Speeds: 30-1/4000sec in 1⁄3 steps plus B
  • Colour Space: Adobe RGB, sRGB
  • Drive Mode: 7fps for 16 JPEG or 7 raw images in Continuous Advance Priority Mode
  • DoF Preview: Yes
  • Dimensions: 124.4x92x84.7mm
  • Metering System: 1,200-zone multi, centreweighted, spot
  • Connectivity / Interface: USB 2.0 Hi-Speed/HDMI
  • Compression: 2-stage JPEG
  • Exposure Comp: ±2EV in 1⁄3EV steps
  • RRP: £569.99 (body only)
  • Lens Mount: Sony Alpha mount
  • ISO: ISO 100-12,800 in 1/3EVEV steps
  • Focusing Modes: Auto, manual, wide , face detection
  • Tested as: Enthusiast DSLR
  • White Balance: Auto, 6 presets, plus custom and Kelvin settings

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