Pentax K-3 vs Pentax K100D

In this write-up, we are matching up the Pentax K-3 versus Pentax K100D, one is a Advanced DSLR and the other is a Entry-Level DSLR and both are created by Pentax. There exists a huge gap between the resolutions of the K-3 (24MP) and K100D (6MP) but they use the same exact sensor dimensions (APS-C).

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The K-3 was introduced 7 years after the K100D which is quite a significant gap as far as technology is concerned. The two cameras offer different body type with the Pentax K-3 being a Mid-size SLR camera and the Pentax K100D being a Compact SLR camera.

Before we go straight into a in-depth comparison, below is a concise synopsis of how the K-3 grades vs the K100D in the way of portability, imaging, features and an overall score.

This is a sample of the gallery pics for Pentax K-3 and Pentax K100D. The whole galleries are viewable at Pentax K-3 Gallery and Pentax K100D Gallery.

For anyone who is looking to carry around your camera frequently, you are going to need to take into account its weight and dimensions. The Pentax K-3 has got external dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs) while the Pentax K100D has dimensions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") along with a weight of 660 grams (1.46 lbs).

Take a look at the Pentax K-3 versus Pentax K100D in the new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ depending on the lens you are utilising at that moment. Here is the front view sizing comparison of the K-3 compared to the K100D.

Considering dimensions and weight, the portability grade of the K-3 and K100D is 59 and 64 respectively.

Typically, its difficult to imagine the contrast between sensor sizes simply by reviewing specifications. The picture here will offer you a more clear sense of the sensor dimensions in the K-3 and K100D.

To sum up, both the cameras enjoy the same exact sensor sizing but different megapixels. You should expect to see the Pentax K-3 to offer you extra detail using its extra 18MP. Greater resolution can also allow you to crop photos far more aggressively. The more recent K-3 provides an advantage in sensor tech.