Olympus E-M1 vs Pentax Efina

In this write-up, we are evaluating the Olympus E-M1 vs Pentax Efina, one is a Pro Mirrorless and the other is a Ultracompact by competitors Olympus and Pentax. The image resolution of the E-M1 (16MP) and the Efina (14MP) is fairly well matched but the E-M1 (Four Thirds) and Efina (1/2.3") enjoy totally different sensor measurements.

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The E-M1 was released 5 months after the Efina so they are of a similar generation. Each of the cameras offer different body type with the Olympus E-M1 being a SLR-style mirrorless camera and the Pentax Efina being a Ultracompact camera.

Before delving in to a in-depth comparison, below is a quick summation of how the E-M1 matches up versus the Efina in regards to portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Olympus OM-D E-M1 and Pentax Efina. The complete galleries are available at Olympus E-M1 Gallery and Pentax Efina Gallery.

In case you're going to travel with your camera regularly, you will have to consider its weight and volume. The Olympus E-M1 features external dimensions of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") and a weight of 497 grams (1.10 lbs) while the Pentax Efina has sizing of 87mm x 54mm x 21mm (3.4" x 2.1" x 0.8") accompanied by a weight of 91 grams (0.20 lbs).

Compare the Olympus E-M1 vs Pentax Efina in the all new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you are utilising at that time. Following is the front view overall size comparison of the E-M1 compared to the Efina.

Factoring in dimensions and weight, the portability grade of the E-M1 and Efina is 71 and 97 respectively.

Typically, it is hard to visualise the contrast between sensor dimensions simply by checking specs. The pic below will offer you a stronger sense of the sensor sizes in the E-M1 and Efina.

As you can plainly see, both the cameras offer different megapixel count and different sensor dimensions. The E-M1 because of its larger sensor will make achieving shallower DOF less difficult and the Olympus E-M1 will give more detail as a result of its extra 2 Megapixels. Greater resolution can also make it easier to crop photos a little more aggressively.