Panasonic G9 vs Sony A99

Below, we will be reviewing the Panasonic G9 and Sony A99, former is a Pro Mirrorless while the latter is a Advanced DSLR by brands Panasonic and Sony. The resolution of the G9 (20MP) and the A99 (24MP) is relatively similar but the G9 (Four Thirds) and A99 (Full frame) feature totally different sensor measurements.

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The G9 was launched 4 years after the A99 which is quite a significant difference as far as tech is concerned. Both the cameras come with different body type with the Panasonic G9 being a SLR-style mirrorless camera and the Sony A99 being a Mid-size SLR camera.

Before delving in to a full comparison, below is a quick highlight of how the G9 scores against the A99 with regard to portability, imaging, features and an overall mark.

Following is a preview of the gallery photos for Panasonic Lumix DC-G9 & Sony SLT-A99. The complete galleries are provided at Panasonic G9 Gallery & Sony A99 Gallery.

When you are going to travel with your camera often, you'll have to factor in its weight and dimensions. The Panasonic G9 comes with physical dimensions of 137mm x 97mm x 92mm (5.4" x 3.8" x 3.6") along with a weight of 658 grams (1.45 lbs) and the Sony A99 has dimensions of 147mm x 111mm x 78mm (5.8" x 4.4" x 3.1") along with a weight of 812 grams (1.79 lbs).

Examine the Panasonic G9 and Sony A99 in our completely new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will change based on the lens you are utilising at that moment. Below is the front view physical size comparison of the G9 compared to the A99.

Taking into account size and weight, the portability score of the G9 and A99 is 62 and 57 respectively.

Oftentimes, it can be difficult to visualise the difference between sensor dimensions purely by reading technical specs. The image here should give you a much better sense of the sensor dimensions in the G9 and A99.

As you can tell, both of the cameras have got different megapixels and different sensor dimensions. The G9 featuring a tinier sensor will make getting shallow depth of field tougher and the Sony A99 will offer you extra detail utilizing its extra 4 Megapixels. Higher resolution can also help you crop shots much more aggressively. The younger G9 is going to have an advantage with regard to sensor innovation.