Olympus E-P5 vs Pentax K-S2

On this page, we will be reviewing the Olympus E-P5 and Pentax K-S2, one is a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by rivals Olympus and Pentax. The image resolution of the E-P5 (16MP) and the K-S2 (20MP) is pretty comparable but the E-P5 (Four Thirds) and K-S2 (APS-C) posses totally different sensor dimensions.

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The E-P5 was released 16 months before the K-S2 which makes them a generation away from one another. Both cameras have different body design with the Olympus E-P5 being a Rangefinder-style mirrorless camera and the Pentax K-S2 being a Compact SLR camera.

Before diving straight to a thorough comparison, here is a simple view of how the E-P5 grades vs the K-S2 when it comes to portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Olympus PEN E-P5 and Pentax K-S2. The complete galleries are provided at Olympus E-P5 Gallery and Pentax K-S2 Gallery.

If you're intending to travel with your camera often, you'll need to think about its weight and measurements. The Olympus E-P5 features outside dimensions of 122mm x 69mm x 37mm (4.8" x 2.7" x 1.5") along with a weight of 420 grams (0.93 lbs) while the Pentax K-S2 has proportions of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") with a weight of 678 grams (1.49 lbs).

Compare the Olympus E-P5 and Pentax K-S2 in the new Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with at the time. Here is a front view physical size comparison of the E-P5 vs the K-S2.

Factoring in dimensions and weight, the portability rating of the E-P5 and K-S2 is 85 and 64 respectively.

Normally, it can be hard to envision the gap in sensor dimensions just by going through specifications. The image below will help give you a greater sense of the sensor dimensions in the E-P5 and K-S2.

To sum up, both of those cameras provide different megapixel count and different sensor dimensions. The E-P5 because of its smaller sensor will make achieving shallow depth of field more difficult and the Pentax K-S2 will show extra detail as a result of its extra 4 Megapixels. Higher resolution will let you crop photographs more aggressively. The more aged E-P5 will be behind in sensor tech.