Panasonic G1 vs Sony A7

Following is a extensive review of the Panasonic G1 and Sony A7, one is a Entry-Level Mirrorless and the latter is a Pro Mirrorless by manufacturers Panasonic and Sony. There is a significant difference between the resolutions of the G1 (12MP) and A7 (24MP) and the G1 (Four Thirds) and A7 (Full frame) come with different sensor dimensions.

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The G1 was introduced 6 years earlier than the A7 which is quite a sizable gap as far as tech is concerned. Both the cameras offer the identical body type (SLR-style mirrorless).

Before going in to a full comparison, below is a short introduction of how the G1 scores vs the A7 in relation to portability, imaging, features and an overall score.

Below is a preview of the gallery images for Panasonic Lumix DMC-G1 and Sony Alpha A7. The whole galleries are viewable at Panasonic G1 Gallery and Sony A7 Gallery.

If you are looking to carry around your camera regularly, you'll need to think about its weight and dimensions. The Panasonic G1 offers outer measurements of 124mm x 84mm x 45mm (4.9" x 3.3" x 1.8") with a weight of 360 grams (0.79 lbs) while the Sony A7 has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 474 grams (1.04 lbs).

Contrast the Panasonic G1 and Sony A7 in the latest Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilizing at that time. Below is the front view dimension comparison of the G1 vs the A7.

Considering size and weight, the portability rating of the G1 and A7 is 82 and 78 respectively.

Oftentimes, its hard to imagine the gap between sensor sizes just by going over technical specs. The picture below will offer you a more clear sense of the sensor sizing in the G1 and A7.

As you can tell, both the cameras offer different resolutions and different sensor sizes. The G1 with its tinier sensor is going to make shooting shallower depth of field harder and the Sony A7 will deliver greater detail using its extra 12MP. Higher resolution can also make it easier to crop shots a little more aggressively. The more aged G1 is going to be behind with regard to sensor tech.