Panasonic GX9 vs Sony A77

Let's look a little more in depth at the Panasonic GX9 and Sony A77, former being a Advanced Mirrorless while the other is a Advanced DSLR by competitors Panasonic and Sony. The image resolution of the GX9 (20MP) and the A77 (24MP) is fairly close but the GX9 (Four Thirds) and A77 (APS-C) feature different sensor sizing.

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The GX9 was released 6 years later than the A77 and that is a fairly sizable difference as far as camera technology is concerned. Both cameras offer different body type with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Sony A77 being a Mid-size SLR camera.

Before we go through a complete comparison, below is a concise view of how the GX9 grades against the A77 in regards to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Panasonic Lumix DC-GX9 & Sony SLT-A77. The complete galleries are viewable at Panasonic GX9 Gallery & Sony A77 Gallery.

If you are aiming to carry your camera, you'll have to think about its weight and volume. The Panasonic GX9 features outside dimensions of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") having a weight of 407 grams (0.90 lbs) and the Sony A77 has sizing of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") having a weight of 732 grams (1.61 lbs).

Look at the Panasonic GX9 and Sony A77 in our completely new Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will vary based on the lens you use at that time. The following is the front view dimensions comparison of the GX9 vs the A77.

Looking at dimensions and weight, the portability grade of the GX9 and A77 is 82 and 59 respectively.

More often than not, its hard to picture the difference in sensor sizing purely by looking through technical specs. The visual below might give you a more clear sense of the sensor sizes in the GX9 and A77.

As you have seen, both of the cameras offer different resolutions and different sensor sizing. The GX9 featuring a smaller sensor is going to make getting shallow depth of field harder and the Sony A77 will provide you with more detail as a result of its extra 4 Megapixels. Greater resolution can also enable you to crop photos a little more aggressively. The fresher GX9 should have an edge with regard to sensor innovation.