Olympus E-P2 vs Sony A55

Lets look a bit more in depth at the Olympus E-P2 versus Sony A55, one being a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by brands Olympus and Sony. There is a huge difference among the resolutions of the E-P2 (12MP) and A55 (16MP) and the E-P2 (Four Thirds) and A55 (APS-C) provide totally different sensor sizes.

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The E-P2 was brought out 4 months earlier than the A55 so they are both of a similar generation. Both of these cameras have different body design with the Olympus E-P2 being a Rangefinder-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before delving into a comprehensive comparison, here is a concise introduction of how the E-P2 scores vs the A55 in relation to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Olympus PEN E-P2 and Sony SLT-A55. The entire galleries are viewable at Olympus E-P2 Gallery and Sony A55 Gallery.

When you are looking to lug around your camera regularly, you're going to have to think about its weight and size. The Olympus E-P2 features exterior measurements of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") along with a weight of 355 grams (0.78 lbs) and the Sony A55 has specifications of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") accompanied by a weight of 500 grams (1.10 lbs).

Compare the Olympus E-P2 versus Sony A55 in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you choose at that time. The following is a front view over all size comparison of the E-P2 compared to the A55.

Considering size and weight, the portability rating of the E-P2 and A55 is 86 and 67 respectively.

Often, its hard to envision the gap in sensor measurements purely by seeing technical specs. The photograph below will offer you a stronger sense of the sensor measurements in the E-P2 and A55.

As you can tell, both of the cameras have different resolutions and different sensor measurements. The E-P2 due to its smaller sensor will make achieving shallow DOF more difficult and the Sony A55 will produce extra detail having its extra 4 Megapixels. Higher resolution can also enable you to crop shots a bit more aggressively.