Pentax K-500 vs Sony A330

Let's look a little more closely at the Pentax K-500 and Sony A330, both Entry-Level DSLR digital cameras by rivals Pentax and Sony. There is a noticeable difference between the resolutions of the K-500 (16MP) and A330 (10MP) but they use the same exact sensor sizing (APS-C).

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The K-500 was launched 4 years later than the A330 and that is quite a sizable difference as far as tech is concerned. Each of these cameras offer the identical body type (Compact SLR).

Before we go through a full comparison, below is a quick summary of how the K-500 grades versus the A330 in terms of portability, imaging, features and an overall grade.

Following is a sample of the gallery pictures for Pentax K-500 & Sony Alpha DSLR-A330. The complete galleries are available at Pentax K-500 Gallery & Sony A330 Gallery.

When you are aiming to lug around your camera often, you should take into account its weight and proportions. The Pentax K-500 offers physical dimensions of 130mm x 97mm x 71mm (5.1" x 3.8" x 2.8") with a weight of 646 grams (1.42 lbs) whilst the Sony A330 has measurements of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") with a weight of 529 grams (1.17 lbs).

Examine the Pentax K-500 and Sony A330 in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary dependant on the lens you use during that time. Below is the front view overall size comparison of the K-500 and the A330.

Factoring in size and weight, the portability rating of the K-500 and A330 is 64 and 67 respectively.

In many cases, it is very difficult to imagine the difference between sensor measurements purely by checking specs. The graphic here might give you a far better sense of the sensor dimensions in the K-500 and A330.

As you can plainly see, each of these cameras offer the same exact sensor sizing but different resolution. You can anticipate the Pentax K-500 to resolve more detail utilizing its extra 6MP. Greater resolution will also help you crop photos a little more aggressively. The more modern K-500 should have an advantage when it comes to sensor technology.