Olympus E-P1 vs Pentax E90

Following is a complete overview of the Olympus E-P1 vs Pentax E90, one is a Entry-Level Mirrorless and the latter is a Small Sensor Compact by brands Olympus and Pentax. The image resolution of the E-P1 (12MP) and the E90 (10MP) is relatively well matched but the E-P1 (Four Thirds) and E90 (1/2.3") enjoy different sensor sizes.

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The E-P1 was announced 6 months earlier than the E90 which means that they are of a similar generation. Each of the cameras offer different body type with the Olympus E-P1 being a Rangefinder-style mirrorless camera and the Pentax E90 being a Compact camera.

Before diving straight into a full comparison, below is a concise synopsis of how the E-P1 scores vs the E90 with regards to portability, imaging, features and an overall score.

Here is a preview of the gallery photos for Olympus PEN E-P1 and Pentax Optio E90. The whole galleries are available at Olympus E-P1 Gallery and Pentax E90 Gallery.

In case you're aiming to carry around your camera often, you have to take into account its weight and measurements. The Olympus E-P1 features exterior measurements of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") along with a weight of 355 grams (0.78 lbs) while the Pentax E90 has proportions of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") having a weight of 145 grams (0.32 lbs).

Compare the Olympus E-P1 vs Pentax E90 in the all new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising at that time. Below is the front view dimension comparison of the E-P1 and the E90.

Taking into consideration size and weight, the portability grade of the E-P1 and E90 is 86 and 94 respectively.

Usually, its difficult to visualize the gap between sensor sizes only by looking at specs. The pic here might give you a clearer sense of the sensor measurements in the E-P1 and E90.

All in all, each of the cameras offer different megapixels and different sensor sizes. The E-P1 having a bigger sensor is going to make getting shallow DOF simpler and the Olympus E-P1 will give extra detail with its extra 2MP. Higher resolution will allow you to crop pictures a little more aggressively.