Pentax Q-S1 vs Sigma Quattro H

Lets look closer at the Pentax Q-S1 and Sigma Quattro H, one being a Entry-Level Mirrorless and the latter is a Advanced Mirrorless by competitors Pentax and Sigma. There is a sizeable difference between the sensor resolutions of the Q-S1 (12MP) and Quattro H (45MP) and the Q-S1 (1/1.7") and Quattro H (APS-H) feature different sensor measurements.

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The Q-S1 was unveiled 18 months earlier than the Quattro H which makes the cameras a generation apart from each other. Each of these cameras come with the identical body type (Rangefinder-style mirrorless).

Before getting in to a detailed comparison, below is a brief highlight of how the Q-S1 grades against the Quattro H for portability, imaging, features and an overall grade.

Here is a preview of the gallery images for Pentax Q-S1 and Sigma sd Quattro H. The full galleries are provided at Pentax Q-S1 Gallery and Sigma Quattro H Gallery.

If you're planning to lug around your camera often, you need to consider its weight and proportions. The Pentax Q-S1 has external measurements of 105mm x 58mm x 34mm (4.1" x 2.3" x 1.3") accompanied by a weight of 203 grams (0.45 lbs) whilst the Sigma Quattro H has measurements of 147mm x 95mm x 91mm (5.8" x 3.7" x 3.6") accompanied by a weight of n/a grams (0.00 lbs).

Contrast the Pentax Q-S1 and Sigma Quattro H in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with at the time. Here is the front view dimensions comparison of the Q-S1 compared to the Quattro H.

Considering size and weight, the portability grade of the Q-S1 and Quattro H is 92 and 78 respectively.

Oftentimes, it is very hard to picture the gap between sensor measurements purely by reading through a spec sheet. The photograph here might give you a stronger sense of the sensor sizing in the Q-S1 and Quattro H.

As you can see, the 2 cameras posses different resolutions and different sensor measurements. The Q-S1 with its tinier sensor is going to make shooting shallow depth of field tougher and the Sigma Quattro H will resolve greater detail having an extra 33 Megapixels. Higher resolution will let you crop shots somewhat more aggressively. The older Q-S1 is going to be disadvantaged with regard to sensor innovation.