Olympus E-P1 vs Pentax K-5 IIs

Its time to take a deeper look at the Olympus E-P1 versus Pentax K-5 IIs, one is a Entry-Level Mirrorless and the latter is a Advanced DSLR by brands Olympus and Pentax. There is a significant difference between the resolutions of the E-P1 (12MP) and K-5 IIs (16MP) and the E-P1 (Four Thirds) and K-5 IIs (APS-C) have totally different sensor sizes.

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The E-P1 was manufactured 4 years prior to the K-5 IIs which is quite a sizable gap as far as tech is concerned. Both of these cameras feature different body design with the Olympus E-P1 being a Rangefinder-style mirrorless camera and the Pentax K-5 IIs being a Mid-size SLR camera.

Before going into a in depth comparison, here is a short view of how the E-P1 matches up against the K-5 IIs with respect to portability, imaging, features and an overall score.

This is a preview of the gallery images for Olympus PEN E-P1 and Pentax K-5 IIs. The entire galleries are viewable at Olympus E-P1 Gallery and Pentax K-5 IIs Gallery.

If you are looking to carry around your camera, you will want to consider its weight and volume. The Olympus E-P1 offers physical dimensions of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") accompanied by a weight of 355 grams (0.78 lbs) while the Pentax K-5 IIs has sizing of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") having a weight of 760 grams (1.68 lbs).

Take a look at the Olympus E-P1 versus Pentax K-5 IIs in the latest Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at that time. Following is a front view physical size comparison of the E-P1 against the K-5 IIs.

Factoring in size and weight, the portability score of the E-P1 and K-5 IIs is 86 and 60 respectively.

Generally, its hard to envision the gap between sensor sizes simply by reviewing specs. The picture below might offer you a greater sense of the sensor sizes in the E-P1 and K-5 IIs.

As you can plainly see, each of the cameras come with different megapixels and different sensor sizes. The E-P1 due to its tinier sensor will make achieving shallow depth of field trickier and the Pentax K-5 IIs will offer more detail due to its extra 4 Megapixels. Higher resolution will make it easier to crop photographs a good deal more aggressively. The more aged E-P1 is going to be disadvantaged in sensor innovation.