Pentax K-1 II vs Sony A7R IV

Here is a detailed comparison of the Pentax K-1 II vs Sony A7R IV, former being a Advanced DSLR while the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There is a substantial difference among the image resolutions of the K-1 II (36MP) and A7R IV (61MP) but they feature the exact same sensor measurements (Full frame).

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The K-1 II was introduced 16 months prior to the A7R IV which makes the cameras a generation apart from each other. Each of these cameras come with different body type with the Pentax K-1 II being a Mid-size SLR camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before we go straight into a thorough comparison, below is a simple introduction of how the K-1 II grades vs the A7R IV in relation to portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Pentax K-1 Mark II & Sony Alpha A7R IV. The whole galleries are viewable at Pentax K-1 II Gallery & Sony A7R IV Gallery.

When you are looking to carry your camera regularly, you need to take into account its weight and volume. The Pentax K-1 II provides external dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") along with a weight of 1010 grams (2.23 lbs) whilst the Sony A7R IV has sizing of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") along with a weight of 665 grams (1.47 lbs).

Check out the Pentax K-1 II vs Sony A7R IV in our brand new Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will differ based on the lens you have during that time. Following is the front view overall size comparison of the K-1 II vs the A7R IV.

Factoring in size and weight, the portability score of the K-1 II and A7R IV is 55 and 62 respectively.

In many cases, it is tough to visualize the difference in sensor sizing purely by seeing a spec sheet. The photograph here should offer you a more clear sense of the sensor sizes in the K-1 II and A7R IV.

Clearly, both of those cameras have got the exact same sensor measurements albeit different MP. You can count on the Sony A7R IV to produce greater detail using its extra 25MP. Higher resolution will also let you crop shots much more aggressively. The older K-1 II will be disadvantaged in sensor innovation.