Sony A9 vs Sony A55

Below, we are analyzing the Sony A9 vs Sony A55, former is a Pro Mirrorless while the other is a Entry-Level DSLR and they are both offered by Sony. There is a considerable difference among the sensor resolutions of the A9 (24MP) and A55 (16MP) and the A9 (Full frame) and A55 (APS-C) possess different sensor sizing.

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The A9 was brought out 6 years after the A55 which is a fairly large difference as far as camera tech is concerned. The two cameras come with different body type with the Sony A9 being a SLR-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before delving in to a detailed comparison, below is a brief view of how the A9 grades vs the A55 in the way of portability, imaging, features and an overall score.

This is a sample of the gallery pics for Sony Alpha A9 & Sony SLT-A55. The entire galleries are viewable at Sony A9 Gallery & Sony A55 Gallery.

When you are planning to carry around your camera, you need to think about its weight and measurements. The Sony A9 provides physical dimensions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") accompanied by a weight of 673 grams (1.48 lbs) whilst the Sony A55 has proportions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Contrast the Sony A9 vs Sony A55 in our brand new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change dependant on the lens you are using at the time. Following is the front view sizing comparison of the A9 vs the A55.

Using size and weight, the portability score of the A9 and A55 is 65 and 67 respectively.

Oftentimes, it's difficult to visualize the contrast in sensor sizes simply by checking out specs. The pic below will help give you a stronger sense of the sensor sizes in the A9 and A55.

As you can plainly see, both cameras posses different resolutions and different sensor sizes. The A9 because of its larger sensor is going to make shooting shallower DOF less difficult and the Sony A9 will produce extra detail having its extra 8MP. Greater resolution will make it easier to crop photos somewhat more aggressively. The newer A9 should have an edge in sensor technology.