Olympus E-3 vs Pentax K-70

The following is a thorough overview of the Olympus E-3 versus Pentax K-70, former is a Advanced DSLR while the latter is a Entry-Level DSLR by brands Olympus and Pentax. There is a sizable difference between the resolutions of the E-3 (10MP) and K-70 (24MP) and the E-3 (Four Thirds) and K-70 (APS-C) possess totally different sensor sizes.

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The E-3 was announced 9 years earlier than the K-70 which is quite a significant difference as far as tech is concerned. Both the cameras offer different body type with the Olympus E-3 being a Mid-size SLR camera and the Pentax K-70 being a Compact SLR camera.

Before we go through a thorough comparison, below is a simple highlight of how the E-3 grades vs the K-70 in regards to portability, imaging, features and an overall mark.

Following is a preview of the gallery images for Olympus E-3 & Pentax K-70. The whole galleries are viewable at Olympus E-3 Gallery & Pentax K-70 Gallery.

For anyone who is planning to travel with your camera often, you need to consider its weight and dimensions. The Olympus E-3 offers outside dimensions of 142mm x 116mm x 75mm (5.6" x 4.6" x 3.0") with a weight of 890 grams (1.96 lbs) whilst the Pentax K-70 has dimensions of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") having a weight of 688 grams (1.52 lbs).

Check the Olympus E-3 versus Pentax K-70 in our newest Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will change based on the lens you select during that time. Following is the front view physical size comparison of the E-3 vs the K-70.

Considering size and weight, the portability score of the E-3 and K-70 is 56 and 62 respectively.

In many cases, it can be difficult to visualise the contrast between sensor dimensions purely by reviewing a spec sheet. The pic below will help provide you a much better sense of the sensor sizes in the E-3 and K-70.

Clearly, the two cameras enjoy different megapixel count and different sensor dimensions. The E-3 having a tinier sensor will make shooting bokeh more challenging and the Pentax K-70 will offer you more detail with its extra 14MP. Higher resolution can also help you crop pictures far more aggressively. The more aged E-3 is going to be disadvantaged with regard to sensor tech.