Olympus E-620 vs Pentax S1

On this page, we are reviewing the Olympus E-620 and Pentax S1, one being a Entry-Level DSLR and the other is a Small Sensor Compact by rivals Olympus and Pentax. The resolution of the E-620 (12MP) and the S1 (14MP) is fairly comparable but the E-620 (Four Thirds) and S1 (1/2.3") boast totally different sensor dimensions.

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The E-620 was introduced 20 months prior to the S1 making them a generation apart from one another. Each of these cameras have different body design with the Olympus E-620 being a Compact SLR camera and the Pentax S1 being a Compact camera.

Before we go right into a thorough comparison, here is a simple synopsis of how the E-620 matches up vs the S1 with regards to portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Olympus E-620 and Pentax Optio S1. The whole galleries are viewable at Olympus E-620 Gallery and Pentax S1 Gallery.

When you are looking to carry your camera, you will have to consider its weight and size. The Olympus E-620 features outer measurements of 130mm x 94mm x 60mm (5.1" x 3.7" x 2.4") along with a weight of 500 grams (1.10 lbs) whilst the Pentax S1 has specifications of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") having a weight of 157 grams (0.35 lbs).

Examine the Olympus E-620 and Pentax S1 in the new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you select at that time. The following is a front view measurement comparison of the E-620 vs the S1.

Taking into account dimensions and weight, the portability rating of the E-620 and S1 is 71 and 93 respectively.

Normally, its hard to see the contrast in sensor sizing just by checking out specifications. The visual here may give you a more clear sense of the sensor measurements in the E-620 and S1.

To sum up, the 2 cameras provide different resolutions and different sensor sizing. The E-620 with its larger sensor will make achieving shallower depth of field easier and the Pentax S1 will provide greater detail using its extra 2 Megapixels. Greater resolution can also help you crop photos more aggressively. The older E-620 will be disadvantaged in sensor technology.