Pentax K-3 vs Sony NEX-3

Here is a comprehensive review of the Pentax K-3 and Sony NEX-3, one being a Advanced DSLR and the other is a Entry-Level Mirrorless by rivals Pentax and Sony. There exists a significant gap among the image resolutions of the K-3 (24MP) and NEX-3 (14MP) but both cameras have the identical sensor sizes (APS-C).

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The K-3 was introduced 3 years later than the NEX-3 and that is a fairly sizable gap as far as camera technology is concerned. The two cameras feature different body design with the Pentax K-3 being a Mid-size SLR camera and the Sony NEX-3 being a Rangefinder-style mirrorless camera.

Before diving straight to a complete comparison, here is a quick highlight of how the K-3 scores vs the NEX-3 in relation to portability, imaging, features and an overall rating.

The following is a sample of the gallery pics for Pentax K-3 and Sony Alpha NEX-3. The whole galleries are viewable at Pentax K-3 Gallery and Sony NEX-3 Gallery.

In case you're going to carry your camera often, you should factor in its weight and measurements. The Pentax K-3 features physical measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") having a weight of 800 grams (1.76 lbs) while the Sony NEX-3 has proportions of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") with a weight of 297 grams (0.65 lbs).

Compare the Pentax K-3 and Sony NEX-3 in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you select during that time. The following is a front view dimension comparison of the K-3 compared to the NEX-3.

Factoring in dimensions and weight, the portability grade of the K-3 and NEX-3 is 59 and 89 respectively.

Quite often, it is very tough to picture the gap in sensor sizing just by looking through specifications. The visual below should provide you a stronger sense of the sensor sizing in the K-3 and NEX-3.

To sum up, each of the cameras come with the identical sensor size but different resolution. You should expect to see the Pentax K-3 to result in more detail using its extra 10 Megapixels. Greater resolution will also let you crop images a good deal more aggressively. The fresher K-3 provides a benefit with regard to sensor tech.