Olympus E-P1 vs Pentax W90

The following is a thorough overview of the Olympus E-P1 vs Pentax W90, one is a Entry-Level Mirrorless and the latter is a Waterproof by manufacturers Olympus and Pentax. The resolution of the E-P1 (12MP) and the W90 (12MP) is pretty well matched but the E-P1 (Four Thirds) and W90 (1/2.3") provide totally different sensor measurements.

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The E-P1 was introduced 7 months earlier than the W90 and they are of a similar generation. The two cameras feature different body design with the Olympus E-P1 being a Rangefinder-style mirrorless camera and the Pentax W90 being a Compact camera.

Before going right into a thorough comparison, here is a brief highlight of how the E-P1 grades versus the W90 when considering portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Olympus PEN E-P1 and Pentax Optio W90. The whole galleries are viewable at Olympus E-P1 Gallery and Pentax W90 Gallery.

If you're planning to travel with your camera frequently, you will need to consider its weight and proportions. The Olympus E-P1 provides physical measurements of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") with a weight of 355 grams (0.78 lbs) while the Pentax W90 has measurements of 108mm x 59mm x 25mm (4.3" x 2.3" x 1.0") along with a weight of 164 grams (0.36 lbs).

Check out the Olympus E-P1 vs Pentax W90 in the all new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are employing at that moment. Below is a front view physical size comparison of the E-P1 against the W90.

Considering size and weight, the portability rating of the E-P1 and W90 is 86 and 94 respectively.

Generally, its hard to envision the gap between sensor dimensions just by reading through specs. The image underneath will help give you a clearer sense of the sensor sizing in the E-P1 and W90.

As you can plainly see, each of the cameras come with the identical resolution albeit not the same sensor dimensions. The E-P1 uses the bigger sensor which should make obtaining shallower DOF less difficult. The more aged E-P1 is going to be behind with regard to sensor technology.