Olympus E-M1 III vs Pentax K-70

Lets take a closer look at the Olympus E-M1 III and Pentax K-70, former is a Pro Mirrorless while the latter is a Entry-Level DSLR by manufacturers Olympus and Pentax. The resolution of the E-M1 III (20MP) and the K-70 (24MP) is pretty similar but the E-M1 III (Four Thirds) and K-70 (APS-C) feature totally different sensor size.

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The E-M1 III was launched 3 years after the K-70 which is quite a serious difference as far as tech is concerned. The two cameras come with different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax K-70 being a Compact SLR camera.

Before delving through a in-depth comparison, below is a short view of how the E-M1 III scores vs the K-70 with regard to portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Olympus OM-D E-M1 Mark III & Pentax K-70. The complete galleries are viewable at Olympus E-M1 III Gallery & Pentax K-70 Gallery.

In case you're looking to travel with your camera often, you'll need to factor its weight and proportions. The Olympus E-M1 III features physical dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) whilst the Pentax K-70 has measurements of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") accompanied by a weight of 688 grams (1.52 lbs).

See the Olympus E-M1 III and Pentax K-70 in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will differ based on the lens you are employing at the time. Following is the front view over all size comparison of the E-M1 III vs the K-70.

Taking into account size and weight, the portability grade of the E-M1 III and K-70 is 67 and 62 respectively.

Usually, it is difficult to envision the contrast between sensor dimensions only by reading technical specs. The image underneath will provide you a greater sense of the sensor sizes in the E-M1 III and K-70.

As you have seen, both of these cameras have got different megapixel count and different sensor dimensions. The E-M1 III because of its tinier sensor will make shooting shallower depth of field more difficult and the Pentax K-70 will offer extra detail utilizing its extra 4 Megapixels. Higher resolution will also make it easier to crop pictures much more aggressively. The more recent E-M1 III will have an advantage with regard to sensor technology.