Pentax K-5 IIs vs Sony NEX-3

Below is a in-depth assessment of the Pentax K-5 IIs versus Sony NEX-3, one being a Advanced DSLR and the other is a Entry-Level Mirrorless by rivals Pentax and Sony. The sensor resolution of the K-5 IIs (16MP) and the NEX-3 (14MP) is very comparable and they possess the exact same sensor sizes (APS-C).

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The K-5 IIs was unveiled 3 years later than the NEX-3 and that is a fairly significant gap as far as camera tech is concerned. Each of these cameras come with different body type with the Pentax K-5 IIs being a Mid-size SLR camera and the Sony NEX-3 being a Rangefinder-style mirrorless camera.

Before going in to a detailed comparison, below is a short summation of how the K-5 IIs matches up against the NEX-3 in regards to portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Pentax K-5 IIs and Sony Alpha NEX-3. The full galleries are viewable at Pentax K-5 IIs Gallery and Sony NEX-3 Gallery.

For anybody who is aiming to lug around your camera regularly, you will have to think about its weight and size. The Pentax K-5 IIs offers physical measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 760 grams (1.68 lbs) while the Sony NEX-3 has specifications of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") and a weight of 297 grams (0.65 lbs).

Compare the Pentax K-5 IIs versus Sony NEX-3 in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen during that time. The following is the front view overall size comparison of the K-5 IIs against the NEX-3.

Considering size and weight, the portability score of the K-5 IIs and NEX-3 is 60 and 89 respectively.

Usually, its hard to visualise the contrast in sensor measurements just by seeing technical specs. The graphic here will give you a much better sense of the sensor measurements in the K-5 IIs and NEX-3.

As you have seen, both of these cameras posses the exact same sensor measurements but not the same resolution. You should expect to see the Pentax K-5 IIs to provide more detail having an extra 2MP. Greater resolution can also let you crop images somewhat more aggressively. The younger K-5 IIs is going to have an edge in sensor technology.