Panasonic GM1 vs Sigma Quattro

Below is a extended comparison of the Panasonic GM1 vs Sigma Quattro, one being a Entry-Level Mirrorless and the latter is a Advanced Mirrorless by rivals Panasonic and Sigma. There is a significant difference between the sensor resolutions of the GM1 (16MP) and Quattro (29MP) and the GM1 (Four Thirds) and Quattro (APS-C) feature totally different sensor size.

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The GM1 was manufactured 3 years prior to the Quattro and that is quite a sizable gap as far as tech is concerned. The two cameras come with the identical body type (Rangefinder-style mirrorless).

Before diving straight into a detailed comparison, below is a concise highlight of how the GM1 grades vs the Quattro when considering portability, imaging, features and an overall grade.

Following is a preview of the gallery images for Panasonic Lumix DMC-GM1 and Sigma sd Quattro. The entire galleries are viewable at Panasonic GM1 Gallery and Sigma Quattro Gallery.

In case you're planning to lug around your camera frequently, you will have to factor in its weight and measurements. The Panasonic GM1 comes with physical dimensions of 99mm x 55mm x 30mm (3.9" x 2.2" x 1.2") along with a weight of 204 grams (0.45 lbs) and the Sigma Quattro has proportions of 147mm x 95mm x 91mm (5.8" x 3.7" x 3.6") accompanied by a weight of 625 grams (1.38 lbs).

Compare the Panasonic GM1 vs Sigma Quattro in the all new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you have attached at that moment. Underneath is the front view dimensions comparison of the GM1 compared to the Quattro.

Factoring in size and weight, the portability rating of the GM1 and Quattro is 93 and 63 respectively.

Oftentimes, it's tough to visualise the gap between sensor measurements just by reading through technical specs. The photograph underneath will help give you a stronger sense of the sensor sizes in the GM1 and Quattro.

As you have seen, each of the cameras have got different resolutions and different sensor measurements. The GM1 featuring a tinier sensor will make getting shallower DOF more challenging and the Sigma Quattro will resolve greater detail due to its extra 13MP. Higher resolution will also allow you to crop photographs much more aggressively. The older GM1 is going to be behind with regard to sensor technology.