OM System OM-1 vs Pentax K-01

Here, we are looking at the OM System OM-1 vs Pentax K-01, one being a Pro Mirrorless and the other is a Entry-Level Mirrorless by rivals Olympus and Pentax. There is a significant difference among the sensor resolutions of the OM System OM-1 (20MP) and K-01 (16MP) and the OM System OM-1 (Four Thirds) and K-01 (APS-C) offer totally different sensor sizing.

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The OM System OM-1 was revealed 9 years later than the K-01 and that is a fairly sizable gap as far as camera tech is concerned. Both of these cameras feature the same body design (SLR-style mirrorless).

Before diving right into a more detailed comparison, here is a short overview of how the OM System OM-1 grades vs the K-01 with regards to portability, imaging, features and an overall grade.

Below is a sample of the gallery pictures for OM System OM-1 and Pentax K-01. The full galleries are provided at OM System OM-1 Gallery and Pentax K-01 Gallery.

If you're planning to lug around your camera, you will need to factor in its weight and dimensions. The OM System OM-1 comes with outer measurements of 135mm x 92mm x 73mm (5.3" x 3.6" x 2.9") and a weight of 599 grams (1.32 lbs) while the Pentax K-01 has dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") along with a weight of 561 grams (1.24 lbs).

Look at the OM System OM-1 vs Pentax K-01 in the new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you are using during that time. Following is a front view proportions comparison of the OM System OM-1 against the K-01.

Considering size and weight, the portability score of the OM System OM-1 and K-01 is 65 and 76 respectively.

Often, it is tough to see the contrast in sensor measurements only by checking out specifications. The graphic here should provide you a more clear sense of the sensor measurements in the OM System OM-1 and K-01.

Plainly, both the cameras come with different megapixel count and different sensor measurements. The OM System OM-1 having a smaller sensor will make shooting shallow depth of field more difficult and the OM System OM-1 will provide greater detail because of its extra 4MP. Greater resolution will help you crop pics a good deal more aggressively. The fresher OM System OM-1 will have an edge when it comes to sensor innovation.