Pentax K100D S vs Sony A9 II

Here is a detailed comparison of the Pentax K100D S and Sony A9 II, former being a Entry-Level DSLR while the other is a Pro Mirrorless by companies Pentax and Sony. There exists a large gap between the resolutions of the K100D S (6MP) and A9 II (24MP) and the K100D S (APS-C) and A9 II (Full frame) possess different sensor sizing.

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The K100D S was announced 13 years prior to the A9 II and that is quite a serious difference as far as technology is concerned. Each of these cameras offer different body type with the Pentax K100D S being a Compact SLR camera and the Sony A9 II being a SLR-style mirrorless camera.

Before diving straight into a comprehensive comparison, below is a simple overview of how the K100D S matches up vs the A9 II in terms of portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Pentax K100D Super & Sony Alpha A9 Mark II. The whole galleries are available at Pentax K100D S Gallery & Sony A9 II Gallery.

For anyone who is going to carry your camera, you need to think about its weight and size. The Pentax K100D S comes with external dimensions of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs) whilst the Sony A9 II has specifications of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") with a weight of 678 grams (1.49 lbs).

Analyze the Pentax K100D S and Sony A9 II in our completely new Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ based on the lens you use at that time. Below is the front view sizing comparison of the K100D S compared to the A9 II.

Taking into account dimensions and weight, the portability score of the K100D S and A9 II is 65 and 62 respectively.

Sometimes, its difficult to imagine the contrast between sensor sizing simply by looking at specifications. The photograph here will help offer you a stronger sense of the sensor sizes in the K100D S and A9 II.

To sum up, both cameras offer different megapixel count and different sensor sizing. The K100D S having a tinier sensor is going to make achieving shallower DOF trickier and the Sony A9 II will give more detail with its extra 18 Megapixels. Greater resolution will enable you to crop images a little more aggressively. The older K100D S is going to be disadvantaged in sensor technology.