Pentax K-x vs Sony A55

Let's look more in depth at the Pentax K-x versus Sony A55, both Entry-Level DSLR cameras by companies Pentax and Sony. There exists a sizable gap among the sensor resolutions of the K-x (12MP) and A55 (16MP) but both cameras offer the same sensor measurements (APS-C).

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The K-x was brought out 8 months earlier than the A55 which means that they are both of a similar age. Each of the cameras have the same body design (Compact SLR).

Before going straight to a in depth comparison, here is a simple introduction of how the K-x grades versus the A55 when it comes to portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Pentax K-x & Sony SLT-A55. The entire galleries are available at Pentax K-x Gallery & Sony A55 Gallery.

For anyone who is intending to carry your camera regularly, you are going to need to take into account its weight and dimensions. The Pentax K-x features exterior measurements of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) while the Sony A55 has dimensions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") with a weight of 500 grams (1.10 lbs).

See the Pentax K-x versus Sony A55 in our brand new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary depending on the lens you are employing at the time. Below is a front view overall size comparison of the K-x against the A55.

Considering dimensions and weight, the portability grade of the K-x and A55 is 69 and 67 respectively.

Normally, it is very difficult to imagine the contrast in sensor sizing simply by researching specs. The visual underneath will give you a stronger sense of the sensor sizing in the K-x and A55.

As you can plainly see, both of the cameras provide the same sensor dimensions but different resolution. You can anticipate the Sony A55 to provide you with more detail having its extra 4 Megapixels. Greater resolution will make it easier to crop images more aggressively. The older K-x will be behind when it comes to sensor tech.