Sony A7R vs Sony A55

On this page, we are analyzing the Sony A7R versus Sony A55, one being a Pro Mirrorless and the other is a Entry-Level DSLR and they are both manufactured by Sony. There is a huge difference between the image resolutions of the A7R (36MP) and A55 (16MP) and the A7R (Full frame) and A55 (APS-C) offer different sensor measurements.

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The A7R was launched 3 years later than the A55 and that is quite a significant gap as far as tech is concerned. The two cameras have different body design with the Sony A7R being a SLR-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before getting straight to a thorough comparison, here is a concise summation of how the A7R scores vs the A55 with respect to portability, imaging, features and an overall grade.

The following is a sample of the gallery pics for Sony Alpha A7R and Sony SLT-A55. The complete galleries are provided at Sony A7R Gallery and Sony A55 Gallery.

In case you're going to lug around your camera, you will need to think about its weight and measurements. The Sony A7R features outer measurements of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") and a weight of 465 grams (1.03 lbs) while 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 A7R versus Sony A55 in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you are using during that time. Below is a front view sizing comparison of the A7R against the A55.

Factoring in size and weight, the portability rating of the A7R and A55 is 78 and 67 respectively.

Often, it is hard to imagine the gap between sensor measurements only by checking technical specs. The photograph here will offer you a stronger sense of the sensor sizing in the A7R and A55.

As you can tell, both of those cameras have different megapixels and different sensor measurements. The A7R because of its larger sensor is going to make getting shallow DOF simpler and the Sony A7R will give you extra detail utilizing its extra 20MP. Greater resolution will help you crop pics a bit more aggressively. The more modern A7R should have an edge in sensor tech.