Canon 5D MIII vs Sony A77

The following is a complete assessment of the Canon 5D MIII versus Sony A77, both Advanced DSLR digital cameras by brands Canon and Sony. The resolution of the 5D MIII (22MP) and the A77 (24MP) is fairly well matched but the 5D MIII (Full frame) and A77 (APS-C) enjoy different sensor sizing.

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The 5D MIII was announced 7 months after the A77 so they are of a similar generation. The two cameras come with the identical body type (Mid-size SLR).

Before going in to a complete comparison, below is a short highlight of how the 5D MIII grades versus the A77 for portability, imaging, features and an overall mark.

Following is a sample of the gallery pictures for Canon EOS 5D Mark III and Sony SLT-A77. The whole galleries are provided at Canon 5D MIII Gallery and Sony A77 Gallery.

For those who are going to travel with your camera often, you will have to think about its weight and proportions. The Canon 5D MIII has external measurements of 152mm x 116mm x 76mm (6.0" x 4.6" x 3.0") with a weight of 950 grams (2.09 lbs) whilst the Sony A77 has measurements of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).

Contrast the Canon 5D MIII versus Sony A77 in the all new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with at that moment. Underneath is the front view scale comparison of the 5D MIII versus the A77.

Looking at dimensions and weight, the portability rating of the 5D MIII and A77 is 55 and 59 respectively.

Quite often, its tough to visualize the gap between sensor dimensions simply by checking specs. The image below might give you a much better sense of the sensor measurements in the 5D MIII and A77.

As you can plainly see, both cameras have got different megapixel count and different sensor dimensions. The 5D MIII having a larger sensor is going to make getting shallow DOF easier and the Sony A77 will give you greater detail with its extra 2MP. Greater resolution will also enable you to crop images much more aggressively. The more modern 5D MIII should have an advantage with regard to sensor technology.