Olympus E-P3 vs Pentax K-7

Here, we will be contrasting the Olympus E-P3 and Pentax K-7, one is a Entry-Level Mirrorless and the latter is a Advanced DSLR by brands Olympus and Pentax. The resolution of the E-P3 (12MP) and the K-7 (15MP) is relatively comparable but the E-P3 (Four Thirds) and K-7 (APS-C) posses different sensor size.

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The E-P3 was revealed 23 months after the K-7 which makes them a generation away from one another. Both the cameras feature different body design with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Pentax K-7 being a Mid-size SLR camera.

Before getting straight to a in depth comparison, here is a concise summary of how the E-P3 grades vs the K-7 with regards to portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Olympus PEN E-P3 and Pentax K-7. The full galleries are viewable at Olympus E-P3 Gallery and Pentax K-7 Gallery.

For anyone who is looking to travel with your camera, you will want to take into account its weight and measurements. The Olympus E-P3 has physical dimensions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") along with a weight of 369 grams (0.81 lbs) whilst the Pentax K-7 has proportions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") having a weight of 750 grams (1.65 lbs).

Contrast the Olympus E-P3 and Pentax K-7 in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising at that time. Here is a front view dimensions comparison of the E-P3 and the K-7.

Using dimensions and weight, the portability score of the E-P3 and K-7 is 86 and 60 respectively.

More often than not, it can be difficult to visualize the gap in sensor dimensions simply by seeing a spec sheet. The picture here will give you a greater sense of the sensor sizes in the E-P3 and K-7.

As you can see, both the cameras come with different megapixels and different sensor dimensions. The E-P3 having a smaller sensor is going to make getting bokeh tougher and the Pentax K-7 will produce greater detail because of its extra 3 Megapixels. Higher resolution will help you crop shots a good deal more aggressively. The newer E-P3 should have an advantage in sensor tech.