Panasonic G3 vs Sony a1

Let's look more in depth at the Panasonic G3 vs Sony a1, former is a Entry-Level Mirrorless while the other is a Pro Mirrorless by manufacturers Panasonic and Sony. There exists a sizable gap among the resolutions of the G3 (16MP) and a1 (50MP) and the G3 (Four Thirds) and a1 (Full frame) provide totally different sensor dimensions.

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The G3 was announced 10 years before the a1 which is a fairly significant difference as far as camera technology is concerned. The two cameras have the same body design (SLR-style mirrorless).

Before we go straight to a full comparison, here is a short view of how the G3 matches up against the a1 for portability, imaging, features and an overall score.

Below is a sample of the gallery pics for Panasonic Lumix DMC-G3 & Sony Alpha a1. The whole galleries are provided at Panasonic G3 Gallery & Sony a1 Gallery.

If you're looking to carry around your camera, you need to factor its weight and size. The Panasonic G3 provides external measurements of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") having a weight of 336 grams (0.74 lbs) while the Sony a1 has specifications of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") accompanied by a weight of 737 grams (1.62 lbs).

See the Panasonic G3 vs Sony a1 in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will differ dependant on the lens you are working with at the time. Here is a front view overall size comparison of the G3 versus the a1.

Taking into consideration dimensions and weight, the portability score of the G3 and a1 is 83 and 61 respectively.

Normally, it's hard to envision the contrast in sensor sizes merely by looking through specs. The pic below may provide you a much better sense of the sensor sizing in the G3 and a1.

All in all, each of these cameras provide different resolutions and different sensor sizes. The G3 having a smaller sensor will make shooting shallow DOF tougher and the Sony a1 will result in greater detail with its extra 34MP. Greater resolution can also enable you to crop photos more aggressively. The more aged G3 will be behind in sensor tech.