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Sony Alpha SLT-A33 Gordon Laing, February 2011

Sony Alpha SLT-A33 results : Real-life resolution / High ISO Noise / Handheld Twilight (HHT) / Multi-frame NR / HDR


Sony Alpha SLT-A33: High Dynamic Range comparison

   
 
   

The Alpha SLT-A33 inherits the in-camera High Dynamic Range (HDR) capabilities of recent Sony cameras. This fires-off three frames at a choice of exposure increments, then automatically combines them into a single image with increased dynamic range – great for protecting detail in highlights and shadows, and like the camera's other cunning modes can be used handheld.

By default, the A33 chooses the exposure increment for you in Auto HDR mode, you can alternatively select exposure increments of 1 to 6EV in single EV steps; that's a huge range and while HDR aficionados may have preferred an additional option to shoot more than three frames (or have broader bracketing options for HDR assembly on their computers), it remains a very powerful feature to find in-camera.

To put the capability to the test we photographed our High ISO Noise composition first with HDR and DRO disabled, then at each of the HDR increments from 1 to 6EV. To illustrate exactly what's going on, we've included a histogram below each image.

Each of these exposures was taken with zero compensation, but Sony regulars will know there can be benefits to metering for the highlights in order to protect them. So our final two examples show the A33 with -2EV compensation applied, first with HDR and DRO disabled, and secondly with HDR manually set to 6EV. Obviously -2EV compensation and the maximum HDR increment are extreme examples, but they illustrate what's possible.

Next head on over to our Sony Alpha SLT-A33 Sample Images Gallery for more examples across its sensitivity range, or head straight over to our verdict!

 

 
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  Sony Alpha SLT-A33: DRO / HDR disabled

 


Sony Alpha SLT-A33: HDR 1EV

 


Sony Alpha SLT-A33: HDR 2EV

 


Sony Alpha SLT-A33: HDR 3EV

 


Sony Alpha SLT-A33: HDR 4EV

 


Sony Alpha SLT-A33: HDR 5EV

 


Sony Alpha SLT-A33: HDR 6EV

 


Sony Alpha SLT-A33: DRO / HDR disabled, -2EV compensation

 


Sony Alpha SLT-A33: HDR 6EV, -2EV compensation

 

 

 

 

 
 
 
 
 
 
 


Sony Alpha SLT-A33 results : Real-life resolution / High ISO Noise / Handheld Twilight (HHT) / Multi-frame NR / HDR



All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

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