Pentax Q10 vs Sony A390

Below, we are matching up the Pentax Q10 and Sony A390, one being a Entry-Level Mirrorless and the other is a Entry-Level DSLR by competitors Pentax and Sony. The resolution of the Q10 (12MP) and the A390 (14MP) is fairly well matched but the Q10 (1/2.3") and A390 (APS-C) possess totally different sensor dimensions.

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The Q10 was revealed 2 years later than the A390 and that is quite a big gap as far as tech is concerned. Both cameras come with different body type with the Pentax Q10 being a Rangefinder-style mirrorless camera and the Sony A390 being a Compact SLR camera.

Before diving straight into a full comparison, below is a concise synopsis of how the Q10 matches up against the A390 with respect to portability, imaging, features and an overall grade.

Below is a sample of the gallery pictures for Pentax Q10 and Sony Alpha DSLR-A390. The full galleries are available at Pentax Q10 Gallery and Sony A390 Gallery.

For anyone who is aiming to lug around your camera, you have to factor in its weight and measurements. The Pentax Q10 features physical dimensions of 102mm x 58mm x 34mm (4.0" x 2.3" x 1.3") along with a weight of 200 grams (0.44 lbs) and the Sony A390 has proportions of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") with a weight of 549 grams (1.21 lbs).

Check out the Pentax Q10 and Sony A390 in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary depending on the lens you are using during that time. Following is the front view size comparison of the Q10 compared to the A390.

Taking into account size and weight, the portability rating of the Q10 and A390 is 92 and 66 respectively.

Often, it is difficult to envision the gap between sensor measurements purely by reading through specifications. The graphic below will help give you a better sense of the sensor dimensions in the Q10 and A390.

Plainly, both of those cameras have got different megapixel count and different sensor measurements. The Q10 with its tinier sensor will make achieving shallow DOF harder and the Sony A390 will resolve extra detail because of its extra 2MP. Greater resolution will allow you to crop pics much more aggressively. The more recent Q10 will have an edge with regard to sensor tech.