Panasonic G9 vs Sony A100

Lets look a bit more in depth at the Panasonic G9 versus Sony A100, one being a Pro Mirrorless and the latter is a Entry-Level DSLR by rivals Panasonic and Sony. There exists a huge gap among the sensor resolutions of the G9 (20MP) and A100 (10MP) and the G9 (Four Thirds) and A100 (APS-C) have different sensor sizes.

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The G9 was unveiled 11 years later than the A100 and that is a fairly significant gap as far as camera technology is concerned. The two cameras have different body design with the Panasonic G9 being a SLR-style mirrorless camera and the Sony A100 being a Compact SLR camera.

Before delving right into a comprehensive comparison, here is a short summary of how the G9 scores vs the A100 when considering portability, imaging, features and an overall grade.

Here is a preview of the gallery photos for Panasonic Lumix DC-G9 and Sony Alpha DSLR-A100. The full galleries are viewable at Panasonic G9 Gallery and Sony A100 Gallery.

If you're going to lug around your camera frequently, you have to factor in its weight and dimensions. The Panasonic G9 comes with external measurements of 137mm x 97mm x 92mm (5.4" x 3.8" x 3.6") with a weight of 658 grams (1.45 lbs) whilst the Sony A100 has dimensions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") and a weight of 638 grams (1.41 lbs).

Compare the Panasonic G9 versus Sony A100 in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you use at the time. Following is a front view size comparison of the G9 versus the A100.

Factoring in dimensions and weight, the portability score of the G9 and A100 is 62 and 64 respectively.

Typically, it can be hard to picture the gap in sensor measurements purely by researching technical specs. The visual here will provide you a greater sense of the sensor sizing in the G9 and A100.

As you can tell, both cameras provide different megapixels and different sensor measurements. The G9 using its smaller sensor is going to make getting shallow DOF more challenging and the Panasonic G9 will result in greater detail having an extra 10MP. Higher resolution will make it easier to crop pictures more aggressively. The younger G9 provides a benefit when it comes to sensor tech.