Panasonic GX9 vs Sony A55

In this article, we are analyzing the Panasonic GX9 and Sony A55, one being a Advanced Mirrorless and the other is a Entry-Level DSLR by manufacturers Panasonic and Sony. There exists a big gap among the image resolutions of the GX9 (20MP) and A55 (16MP) and the GX9 (Four Thirds) and A55 (APS-C) enjoy totally different sensor measurements.

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The GX9 was introduced 7 years later than the A55 and that is a fairly big gap as far as camera technology is concerned. The two cameras offer different body type with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before diving through a full comparison, below is a concise overview of how the GX9 matches up vs the A55 when considering portability, imaging, features and an overall grade.

Below is a sample of the gallery pictures for Panasonic Lumix DC-GX9 and Sony SLT-A55. The whole galleries are viewable at Panasonic GX9 Gallery and Sony A55 Gallery.

For anybody who is planning to lug around your camera often, you're going to have to think about its weight and dimensions. The Panasonic GX9 features physical dimensions of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") having a weight of 407 grams (0.90 lbs) whilst the Sony A55 has dimensions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") and a weight of 500 grams (1.10 lbs).

Compare the Panasonic GX9 and Sony A55 in the new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are utilizing at the time. The following is the front view overall size comparison of the GX9 compared to the A55.

Using dimensions and weight, the portability grade of the GX9 and A55 is 82 and 67 respectively.

Quite often, it is difficult to visualise the gap in sensor measurements purely by going through specifications. The photograph below should give you a better sense of the sensor dimensions in the GX9 and A55.

Plainly, both of these cameras offer different megapixels and different sensor measurements. The GX9 having a smaller sensor will make getting shallower depth of field more difficult and the Panasonic GX9 will produce greater detail using its extra 4 Megapixels. Greater resolution will also allow you to crop pics a little more aggressively. The fresher GX9 is going to have an edge when it comes to sensor tech.