OM System OM-1 vs Panasonic S5 II

Following is a complete overview of the OM System OM-1 and Panasonic S5 II, both Pro Mirrorless cameras by companies Olympus and Panasonic. The resolution of the OM System OM-1 (20MP) and the S5 II (24MP) is fairly comparable but the OM System OM-1 (Four Thirds) and S5 II (Full frame) posses different sensor sizes.

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The OM System OM-1 was announced 10 months earlier than the S5 II which means that they are of a similar generation. Each of the cameras have the same body design (SLR-style mirrorless).

Before diving straight to a complete comparison, here is a quick highlight of how the OM System OM-1 scores versus the S5 II in the way of portability, imaging, features and an overall score.

Below is a sample of the gallery pictures for OM System OM-1 and Panasonic Lumix DC-S5 Mark II. The whole galleries are viewable at OM System OM-1 Gallery and Panasonic S5 II Gallery.

If you are intending to carry around your camera regularly, you will have to factor its weight and dimensions. The OM System OM-1 has got outer measurements of 135mm x 92mm x 73mm (5.3" x 3.6" x 2.9") accompanied by a weight of 599 grams (1.32 lbs) whilst the Panasonic S5 II has dimensions of 134mm x 102mm x 90mm (5.3" x 4.0" x 3.5") accompanied by a weight of 740 grams (1.63 lbs).

Check the OM System OM-1 and Panasonic S5 II in the all new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you select at the time. Here is a front view over all size comparison of the OM System OM-1 vs the S5 II.

Taking into consideration size and weight, the portability rating of the OM System OM-1 and S5 II is 65 and 59 respectively.

In many cases, its tough to visualize the difference in sensor sizes just by seeing a spec sheet. The picture below will give you a clearer sense of the sensor sizing in the OM System OM-1 and S5 II.

As you can see, each of these cameras have different megapixels and different sensor sizes. The OM System OM-1 using its smaller sensor is going to make getting shallow DOF tougher and the Panasonic S5 II will provide extra detail with its extra 4MP. Greater resolution will enable you to crop images a bit more aggressively. The more aged OM System OM-1 will be disadvantaged when it comes to sensor tech.