Olympus E-M1 vs Pentax E70

Below is a in-depth overview of the Olympus E-M1 and Pentax E70, former being a Pro Mirrorless while the other is a Small Sensor Compact by manufacturers Olympus and Pentax. There is a noticeable difference between the sensor resolutions of the E-M1 (16MP) and E70 (10MP) and the E-M1 (Four Thirds) and E70 (1/2.3") use totally different sensor dimensions.

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The E-M1 was brought out 4 years later than the E70 and that is quite a sizable difference as far as tech is concerned. Both of the cameras offer different body type with the Olympus E-M1 being a SLR-style mirrorless camera and the Pentax E70 being a Compact camera.

Before going straight into a detailed comparison, below is a quick summation of how the E-M1 scores vs the E70 in the way of portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Olympus OM-D E-M1 & Pentax Optio E70. The entire galleries are viewable at Olympus E-M1 Gallery & Pentax E70 Gallery.

In case you're looking to lug around your camera frequently, you'll have to factor in its weight and dimensions. The Olympus E-M1 provides exterior dimensions of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") and a weight of 497 grams (1.10 lbs) and the Pentax E70 has dimensions of 94mm x 61mm x 26mm (3.7" x 2.4" x 1.0") with a weight of 175 grams (0.39 lbs).

See the Olympus E-M1 and Pentax E70 in our newest Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will change based on the lens you are employing at the time. Following is the front view scale comparison of the E-M1 and the E70.

Looking at size and weight, the portability grade of the E-M1 and E70 is 71 and 94 respectively.

Often, it is very difficult to envision the difference between sensor measurements simply by checking a spec sheet. The visual here may give you a clearer sense of the sensor sizes in the E-M1 and E70.

As you can see, the two cameras enjoy different megapixels and different sensor measurements. The E-M1 due to its larger sensor will make getting bokeh less difficult and the Olympus E-M1 will give you greater detail having its extra 6 Megapixels. Greater resolution can also enable you to crop photos far more aggressively. The more recent E-M1 is going to have an edge when it comes to sensor technology.