Panasonic GM1 vs Sigma DP3 Merrill

In this write-up, we are contrasting the Panasonic GM1 and Sigma DP3 Merrill, former being a Entry-Level Mirrorless while the other is a Large Sensor Compact by brands Panasonic and Sigma. The sensor resolution of the GM1 (16MP) and the DP3 Merrill (15MP) is fairly well matched but the GM1 (Four Thirds) and DP3 Merrill (APS-C) use different sensor size.

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The GM1 was released 12 months later than the DP3 Merrill so they are both of a similar age. Each of the cameras offer different body type with the Panasonic GM1 being a Rangefinder-style mirrorless camera and the Sigma DP3 Merrill being a Large Sensor Compact camera.

Before delving in to a thorough comparison, below is a simple overview of how the GM1 scores versus the DP3 Merrill in relation to portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Panasonic Lumix DMC-GM1 & Sigma DP3 Merrill. The complete galleries are available at Panasonic GM1 Gallery & Sigma DP3 Merrill Gallery.

For anyone who is going to carry your camera frequently, you are going to need to factor its weight and proportions. The Panasonic GM1 comes with exterior measurements of 99mm x 55mm x 30mm (3.9" x 2.2" x 1.2") accompanied by a weight of 204 grams (0.45 lbs) whilst the Sigma DP3 Merrill has measurements of 122mm x 67mm x 59mm (4.8" x 2.6" x 2.3") having a weight of 330 grams (0.73 lbs).

Check out the Panasonic GM1 and Sigma DP3 Merrill in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary based on the lens you have at that time. Below is the front view dimensions comparison of the GM1 vs the DP3 Merrill.

Taking into account size and weight, the portability rating of the GM1 and DP3 Merrill is 93 and 83 respectively.

Usually, it is very difficult to picture the difference between sensor sizing purely by checking specs. The photograph below should give you a clearer sense of the sensor sizing in the GM1 and DP3 Merrill.

All in all, the 2 cameras offer different megapixel count and different sensor sizing. The GM1 because of its tinier sensor is going to make getting shallow DOF tougher and the Panasonic GM1 will resolve more detail as a result of its extra 1MP. Greater resolution will help you crop pics a little more aggressively. The fresher GM1 provides an advantage with regard to sensor tech.