Pentax 645D vs Pentax K-01

Let's take a deeper look at the Pentax 645D versus Pentax K-01, one is a Pro DSLR and the other is a Entry-Level Mirrorless and they are both designed by Pentax. There is a sizeable difference between the resolutions of the 645D (40MP) and K-01 (16MP) and the 645D (Medium format) and K-01 (APS-C) feature different sensor sizing.

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The 645D was unveiled 3 years earlier than the K-01 which is quite a large gap as far as tech is concerned. Both of these cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax K-01 being a SLR-style mirrorless camera.

Before diving in to a detailed comparison, below is a brief introduction of how the 645D grades against the K-01 for portability, imaging, features and an overall mark.

This is a sample of the gallery pics for Pentax 645D and Pentax K-01. The full galleries are provided at Pentax 645D Gallery and Pentax K-01 Gallery.

In case you're aiming to travel with your camera regularly, you'll have to consider its weight and measurements. The Pentax 645D features outer measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs) while the Pentax K-01 has proportions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") accompanied by a weight of 561 grams (1.24 lbs).

Look at the Pentax 645D versus Pentax K-01 in the latest Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have at the time. Here is the front view size comparison of the 645D against the K-01.

Taking into account size and weight, the portability rating of the 645D and K-01 is 50 and 76 respectively.

In many cases, it's difficult to imagine the gap between sensor dimensions just by going over specs. The picture underneath will provide you a clearer sense of the sensor measurements in the 645D and K-01.

All in all, each of these cameras enjoy different megapixel count and different sensor dimensions. The 645D having a larger sensor is going to make shooting shallow DOF simpler and the Pentax 645D will offer you greater detail having an extra 24MP. Greater resolution can also make it easier to crop images far more aggressively. The more aged 645D is going to be behind in sensor innovation.