Pentax K-5 IIs vs Sony A9

Following is a detailed analysis of the Pentax K-5 IIs versus Sony A9, former is a Advanced DSLR while the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There is a considerable difference between the image resolutions of the K-5 IIs (16MP) and A9 (24MP) and the K-5 IIs (APS-C) and A9 (Full frame) provide different sensor dimensions.

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The K-5 IIs was unveiled 4 years earlier than the A9 which is quite a large difference as far as tech is concerned. Each of the cameras have different body design with the Pentax K-5 IIs being a Mid-size SLR camera and the Sony A9 being a SLR-style mirrorless camera.

Before going straight to a more detailed comparison, here is a short synopsis of how the K-5 IIs grades versus the A9 with respect to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Pentax K-5 IIs & Sony Alpha A9. The full galleries are provided at Pentax K-5 IIs Gallery & Sony A9 Gallery.

When you are planning to carry around your camera regularly, you're going to have to consider its weight and volume. The Pentax K-5 IIs provides outer measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") accompanied by a weight of 760 grams (1.68 lbs) while the Sony A9 has sizing of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") along with a weight of 673 grams (1.48 lbs).

Compare the Pentax K-5 IIs versus Sony A9 in our newest Camera plus Lens Size Comparison Tool.

Always remember, the weight of an ILC will change based on the lens you are employing at that time. Below is a front view proportions comparison of the K-5 IIs and the A9.

Taking into account size and weight, the portability grade of the K-5 IIs and A9 is 60 and 65 respectively.

Often, it is tough to picture the difference between sensor sizes merely by looking at specifications. The image below may offer you a better sense of the sensor measurements in the K-5 IIs and A9.

Plainly, both of these cameras have different megapixels and different sensor sizes. The K-5 IIs with its tinier sensor is going to make getting shallower depth of field trickier and the Sony A9 will give extra detail having an extra 8MP. Higher resolution will enable you to crop shots a bit more aggressively. The more aged K-5 IIs is going to be behind in sensor technology.