Pentax ist DS2 vs Sony TX20

Lets take a deeper look at the Pentax ist DS2 and Sony TX20, one being a Advanced DSLR and the latter is a Ultracompact by competitors Pentax and Sony. There exists a crucial gap among the sensor resolutions of the ist DS2 (6MP) and TX20 (16MP) and the ist DS2 (APS-C) and TX20 (1/2.3") provide different sensor measurements.

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The ist DS2 was brought out 7 years earlier than the TX20 and that is a fairly serious gap as far as camera technology is concerned. Both cameras have different body design with the Pentax ist DS2 being a Mid-size SLR camera and the Sony TX20 being a Ultracompact camera.

Before getting straight to a in depth comparison, here is a concise highlight of how the ist DS2 grades against the TX20 in regards to portability, imaging, features and an overall rating.

Following is a preview of the gallery photos for Pentax ist DS2 and Sony Cyber-shot DSC-TX20. The entire galleries are available at Pentax ist DS2 Gallery and Sony TX20 Gallery.

When you are aiming to carry your camera frequently, you'll need to factor in its weight and size. The Pentax ist DS2 comes with external measurements of 125mm x 93mm x 66mm (4.9" x 3.7" x 2.6") having a weight of 605 grams (1.33 lbs) and the Sony TX20 has specifications of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") with a weight of 133 grams (0.29 lbs).

Take a look at the Pentax ist DS2 and Sony TX20 in the latest Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilizing during that time. Following is a front view sizing comparison of the ist DS2 compared to the TX20.

Taking into account dimensions and weight, the portability rating of the ist DS2 and TX20 is 68 and 96 respectively.

Normally, it can be tough to visualize the contrast in sensor sizing just by viewing specs. The photograph below should provide you a far better sense of the sensor measurements in the ist DS2 and TX20.

As you can plainly see, both the cameras provide different megapixels and different sensor sizing. The ist DS2 featuring a bigger sensor is going to make achieving shallow DOF easier and the Sony TX20 will result in greater detail having its extra 10 Megapixels. Higher resolution will also allow you to crop shots more aggressively. The older ist DS2 will be disadvantaged with regard to sensor tech.