Olympus E-P7 vs Sony a5100

Below is a comprehensive comparison of the Olympus E-P7 versus Sony a5100, both Entry-Level Mirrorless cameras by competitors Olympus and Sony. The resolution of the E-P7 (20MP) and the a5100 (24MP) is pretty comparable but the E-P7 (Four Thirds) and a5100 (APS-C) boast different sensor measurements.

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The E-P7 was introduced 6 years later than the a5100 and that is a fairly sizable gap as far as camera technology is concerned. Both of the cameras feature the same body design (Rangefinder-style mirrorless).

Before we go straight to a comprehensive comparison, here is a short view of how the E-P7 grades versus the a5100 in regards to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Olympus PEN E-P7 and Sony Alpha a5100. The whole galleries are available at Olympus E-P7 Gallery and Sony a5100 Gallery.

For anyone who is aiming to lug around your camera regularly, you are going to need to factor in its weight and measurements. The Olympus E-P7 offers outside measurements of 118mm x 69mm x 38mm (4.6" x 2.7" x 1.5") with a weight of 337 grams (0.74 lbs) and the Sony a5100 has proportions of 110mm x 63mm x 36mm (4.3" x 2.5" x 1.4") with a weight of 283 grams (0.62 lbs).

Check out the Olympus E-P7 versus Sony a5100 in the new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising during that time. Underneath is a front view dimension comparison of the E-P7 and the a5100.

Using dimensions and weight, the portability score of the E-P7 and a5100 is 86 and 89 respectively.

Quite often, it can be tough to imagine the gap in sensor measurements simply by checking out a spec sheet. The visual below should give you a far better sense of the sensor sizing in the E-P7 and a5100.

As you can see, the 2 cameras come with different megapixel count and different sensor measurements. The E-P7 with its smaller sensor is going to make shooting shallower DOF tougher and the Sony a5100 will produce more detail using its extra 4 Megapixels. Higher resolution can also allow you to crop photographs a good deal more aggressively. The newer E-P7 provides a benefit with regard to sensor innovation.