Olympus E-P2 vs Pentax K-S1

Here is a comprehensive assessment of the Olympus E-P2 vs Pentax K-S1, one being a Entry-Level Mirrorless and the latter is a Advanced DSLR by companies Olympus and Pentax. There is a big difference among the image resolutions of the E-P2 (12MP) and K-S1 (20MP) and the E-P2 (Four Thirds) and K-S1 (APS-C) enjoy different sensor size.

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The E-P2 was announced 5 years before the K-S1 and that is a fairly big gap as far as camera tech is concerned. Each of these cameras offer different body type with the Olympus E-P2 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before delving straight into a in-depth comparison, below is a short summary of how the E-P2 matches up vs the K-S1 in terms of portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Olympus PEN E-P2 and Pentax K-S1. The whole galleries are provided at Olympus E-P2 Gallery and Pentax K-S1 Gallery.

When you are planning to carry your camera regularly, you will want to think about its weight and volume. The Olympus E-P2 has got outside 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-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") having a weight of 558 grams (1.23 lbs).

Look at the Olympus E-P2 vs Pentax K-S1 in the new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilising at that time. Here is the front view dimension comparison of the E-P2 versus the K-S1.

Taking into account size and weight, the portability rating of the E-P2 and K-S1 is 86 and 69 respectively.

In many cases, its tough to picture the difference in sensor sizing merely by researching technical specs. The photograph below should provide you a far better sense of the sensor dimensions in the E-P2 and K-S1.

As you can tell, both cameras offer different resolutions and different sensor sizing. The E-P2 using its smaller sensor is going to make shooting shallow depth of field trickier and the Pentax K-S1 will render greater detail with its extra 8 Megapixels. Higher resolution will help you crop shots a little more aggressively. The older E-P2 will be behind in sensor innovation.