Olympus E-PM1 vs Pentax W90

Here, we are contrasting the Olympus E-PM1 vs Pentax W90, former is a Entry-Level Mirrorless while the other is a Waterproof by manufacturers Olympus and Pentax. The resolution of the E-PM1 (12MP) and the W90 (12MP) is very comparable but the E-PM1 (Four Thirds) and W90 (1/2.3") have different sensor sizing.

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The E-PM1 was announced 22 months after the W90 making them a generation away from each other. Both of these cameras feature different body design with the Olympus E-PM1 being a Rangefinder-style mirrorless camera and the Pentax W90 being a Compact camera.

Before going right into a complete comparison, here is a short summary of how the E-PM1 grades vs the W90 in terms of portability, imaging, features and an overall score.

Here is a sample of the gallery pics for Olympus PEN E-PM1 & Pentax Optio W90. The whole galleries are viewable at Olympus E-PM1 Gallery & Pentax W90 Gallery.

When you are aiming to carry around your camera, you need to factor its weight and measurements. The Olympus E-PM1 offers external measurements of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") along with a weight of 265 grams (0.58 lbs) while the Pentax W90 has proportions of 108mm x 59mm x 25mm (4.3" x 2.3" x 1.0") and a weight of 164 grams (0.36 lbs).

Look at the Olympus E-PM1 vs Pentax W90 in our newest Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change depending on the lens you have during that time. Following is a front view proportions comparison of the E-PM1 against the W90.

Considering size and weight, the portability grade of the E-PM1 and W90 is 89 and 94 respectively.

In many cases, it is very difficult to imagine the gap in sensor sizes only by going through specs. The image below will provide you a greater sense of the sensor measurements in the E-PM1 and W90.

As you can plainly see, both of these cameras feature the identical MP but different sensor sizes. The E-PM1 has the larger sensor which is going to make obtaining shallow DOF easier. The fresher E-PM1 should have an advantage in sensor innovation.