Sony A550 vs Sony A77

In this article, we will be reviewing the Sony A550 and Sony A77, one being a Entry-Level DSLR and the latter is a Advanced DSLR and both are designed by Sony. There is a sizeable difference among the resolutions of the A550 (14MP) and A77 (24MP) but they enjoy the same exact sensor dimensions (APS-C).

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The A550 was manufactured 22 months prior to the A77 which makes the cameras a generation apart from each other. Each of these cameras offer different body type with the Sony A550 being a Compact SLR camera and the Sony A77 being a Mid-size SLR camera.

Before getting in to a in-depth comparison, below is a simple introduction of how the A550 grades vs the A77 for portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Sony Alpha DSLR-A550 and Sony SLT-A77. The entire galleries are viewable at Sony A550 Gallery and Sony A77 Gallery.

If you're looking to lug around your camera frequently, you will have to think about its weight and dimensions. The Sony A550 comes with exterior measurements of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") having a weight of 632 grams (1.39 lbs) whilst the Sony A77 has dimensions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).

Analyze the Sony A550 and Sony A77 in the all new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary based on the lens you use at the time. Here is the front view measurements comparison of the A550 against the A77.

Taking into account size and weight, the portability rating of the A550 and A77 is 63 and 59 respectively.

Often, its tough to visualise the gap in sensor measurements merely by researching a spec sheet. The visual below might give you a more clear sense of the sensor sizing in the A550 and A77.

As you can see, both of those cameras offer the same exact sensor sizing albeit not the same megapixels. You should expect the Sony A77 to provide you with more detail due to its extra 10MP. Higher resolution will also enable you to crop shots a little more aggressively. The older A550 will be disadvantaged with regard to sensor tech.