Pentax K-5 vs Pentax K100D

On this page, we are matching up the Pentax K-5 versus Pentax K100D, one is a Advanced DSLR and the other is a Entry-Level DSLR and both are sold by Pentax. There exists a significant gap among the sensor resolutions of the K-5 (16MP) and K100D (6MP) but both cameras boast the same sensor sizes (APS-C).

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The K-5 was released 4 years after the K100D which is a fairly sizable gap as far as camera technology is concerned. Each of these cameras have different body design with the Pentax K-5 being a Mid-size SLR camera and the Pentax K100D being a Compact SLR camera.

Before going straight to a comprehensive comparison, here is a quick view of how the K-5 scores versus the K100D with regard to portability, imaging, features and an overall score.

Below is a sample of the gallery pictures for Pentax K-5 and Pentax K100D. The complete galleries are available at Pentax K-5 Gallery and Pentax K100D Gallery.

When you are going to carry around your camera often, you are going to need to factor its weight and proportions. The Pentax K-5 enjoys external measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 740 grams (1.63 lbs) whilst the Pentax K100D has measurements of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") along with a weight of 660 grams (1.46 lbs).

Analyze the Pentax K-5 versus Pentax K100D in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are using at that moment. Following is a front view over all size comparison of the K-5 versus the K100D.

Looking at dimensions and weight, the portability score of the K-5 and K100D is 60 and 64 respectively.

Typically, it's hard to picture the contrast in sensor sizes only by researching a spec sheet. The picture below should provide you a more clear sense of the sensor sizing in the K-5 and K100D.

Clearly, both cameras have the same sensor dimensions but different MP. You should anticipate the Pentax K-5 to provide you with greater detail as a result of its extra 10 Megapixels. Greater resolution will let you crop pics a bit more aggressively. The younger K-5 provides an advantage in sensor tech.