Olympus E-M1 vs Pentax E90

Following is a complete analysis of the Olympus E-M1 versus Pentax E90, one is a Pro Mirrorless and the latter is a Small Sensor Compact by brands Olympus and Pentax. There exists a sizeable gap between the resolutions of the E-M1 (16MP) and E90 (10MP) and the E-M1 (Four Thirds) and E90 (1/2.3") feature different sensor size.

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The E-M1 was revealed 3 years after the E90 which is quite a large gap as far as technology is concerned. Both of these cameras come with different body type with the Olympus E-M1 being a SLR-style mirrorless camera and the Pentax E90 being a Compact camera.

Before delving in to a in depth comparison, below is a simple view of how the E-M1 matches up vs the E90 with regard to portability, imaging, features and an overall score.

The following is a preview of the gallery images for Olympus OM-D E-M1 and Pentax Optio E90. The full galleries are provided at Olympus E-M1 Gallery and Pentax E90 Gallery.

For anybody who is planning to carry around your camera regularly, you'll need to consider its weight and proportions. The Olympus E-M1 comes with outside dimensions of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") accompanied by a weight of 497 grams (1.10 lbs) whilst the Pentax E90 has measurements of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") having a weight of 145 grams (0.32 lbs).

Check out the Olympus E-M1 versus Pentax E90 in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change depending on the lens you are utilising at that moment. Following is the front view size comparison of the E-M1 and the E90.

Factoring in dimensions and weight, the portability score of the E-M1 and E90 is 71 and 94 respectively.

Normally, it's tough to visualize the difference between sensor sizes just by reviewing a spec sheet. The picture here may provide you a more clear sense of the sensor dimensions in the E-M1 and E90.

As you can see, the two cameras have got different megapixel count and different sensor sizes. The E-M1 having a bigger sensor is going to make shooting shallower DOF easier and the Olympus E-M1 will deliver more detail because of its extra 6MP. Higher resolution will make it easier to crop pictures much more aggressively. The more modern E-M1 should have an edge with regard to sensor technology.