Sony A55 vs Sony A77

Here is a detailed review of the Sony A55 and Sony A77, one being a Entry-Level DSLR and the other is a Advanced DSLR and they are both manufactured by Sony. There is a sizeable difference among the image resolutions of the A55 (16MP) and A77 (24MP) but they enjoy the same exact sensor measurements (APS-C).

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The A55 was manufactured 14 months earlier than the A77 making the cameras a generation apart from each other. Each of these cameras offer different body type with the Sony A55 being a Compact SLR camera and the Sony A77 being a Mid-size SLR camera.

Before diving in to a more detailed comparison, below is a brief summary of how the A55 scores against the A77 with respect to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Sony SLT-A55 and Sony SLT-A77. The entire galleries are provided at Sony A55 Gallery and Sony A77 Gallery.

If you're going to carry your camera regularly, you will need to factor in its weight and dimensions. The Sony A55 offers outside measurements of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") and a weight of 500 grams (1.10 lbs) while the Sony A77 has dimensions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") accompanied by a weight of 732 grams (1.61 lbs).

Check out the Sony A55 and Sony A77 in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have chosen at that time. Below is the front view measurements comparison of the A55 and the A77.

Using size and weight, the portability score of the A55 and A77 is 67 and 59 respectively.

Usually, it is very hard to picture the contrast in sensor sizing simply by researching specs. The graphic below will help provide you a better sense of the sensor measurements in the A55 and A77.

All in all, the two cameras offer the same exact sensor sizing but different MP. You should anticipate the Sony A77 to result in more detail due to its extra 8 Megapixels. Greater resolution will also help you crop images a little more aggressively. The older A55 will be disadvantaged when it comes to sensor tech.