Panasonic G2 vs Sony a1

Here, we will be comparing the Panasonic G2 and Sony a1, one is a Entry-Level Mirrorless and the latter is a Pro Mirrorless by rivals Panasonic and Sony. There is a big difference between the sensor resolutions of the G2 (12MP) and a1 (50MP) and the G2 (Four Thirds) and a1 (Full frame) posses different sensor sizing.

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The G2 was introduced 11 years earlier than the a1 which is quite a big gap as far as tech is concerned. Both the cameras feature the same body design (SLR-style mirrorless).

Before going right into a comprehensive comparison, here is a brief introduction of how the G2 grades versus the a1 in relation to portability, imaging, features and an overall score.

Here is a preview of the gallery images for Panasonic Lumix DMC-G2 and Sony Alpha a1. The whole galleries are viewable at Panasonic G2 Gallery and Sony a1 Gallery.

When you are intending to carry around your camera regularly, you should factor in its weight and size. The Panasonic G2 provides external dimensions of 124mm x 84mm x 74mm (4.9" x 3.3" x 2.9") with a weight of 428 grams (0.94 lbs) while the Sony a1 has specifications of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") and a weight of 737 grams (1.62 lbs).

See the Panasonic G2 and Sony a1 in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you have chosen during that time. Here is a front view sizing comparison of the G2 compared to the a1.

Using size and weight, the portability score of the G2 and a1 is 72 and 61 respectively.

Generally, it is very difficult to imagine the difference between sensor sizes merely by reading through a spec sheet. The picture underneath should offer you a better sense of the sensor dimensions in the G2 and a1.

As you can see, both of those cameras feature different megapixel count and different sensor sizes. The G2 having a tinier sensor is going to make achieving shallow DOF more challenging and the Sony a1 will give more detail using its extra 38MP. Higher resolution will help you crop shots way more aggressively. The more aged G2 is going to be disadvantaged when it comes to sensor tech.