Pentax K-3 vs Sony TX20

Below, we are evaluating the Pentax K-3 versus Sony TX20, one is a Advanced DSLR and the other is a Ultracompact by competitors Pentax and Sony. There is a crucial difference between the sensor resolutions of the K-3 (24MP) and TX20 (16MP) and the K-3 (APS-C) and TX20 (1/2.3") use different sensor measurements.

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The K-3 was released 2 years after the TX20 which is quite a serious gap as far as tech is concerned. The two cameras come with different body type with the Pentax K-3 being a Mid-size SLR camera and the Sony TX20 being a Ultracompact camera.

Before we go in to a complete comparison, below is a short synopsis of how the K-3 scores versus the TX20 when it comes to portability, imaging, features and an overall mark.

This is a sample of the gallery pics for Pentax K-3 and Sony Cyber-shot DSC-TX20. The complete galleries are available at Pentax K-3 Gallery and Sony TX20 Gallery.

For anyone who is intending to travel with your camera regularly, you are going to need to consider its weight and measurements. The Pentax K-3 comes with external measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") along with a weight of 800 grams (1.76 lbs) whilst the Sony TX20 has proportions of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") with a weight of 133 grams (0.29 lbs).

Contrast the Pentax K-3 versus Sony TX20 in the new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will differ depending on the lens you have at the time. Following is the front view dimension comparison of the K-3 and the TX20.

Taking into consideration size and weight, the portability grade of the K-3 and TX20 is 59 and 96 respectively.

Often, it is very difficult to picture the contrast between sensor dimensions merely by reading through a spec sheet. The image here might offer you a far better sense of the sensor measurements in the K-3 and TX20.

As you can see, each of these cameras have got different megapixels and different sensor dimensions. The K-3 due to its larger sensor is going to make getting shallower depth of field less difficult and the Pentax K-3 will give more detail as a result of its extra 8 Megapixels. Greater resolution can also let you crop photos much more aggressively. The fresher K-3 should have an advantage with regard to sensor technology.