Olympus E-M1 vs Panasonic TS25

Below is a extended review of the Olympus E-M1 and Panasonic TS25, former being a Pro Mirrorless while the latter is a Waterproof by brands Olympus and Panasonic. The sensor resolution of the E-M1 (16MP) and the TS25 (16MP) is relatively close but the E-M1 (Four Thirds) and TS25 (1/2.3") offer totally different sensor measurements.

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The E-M1 was announced 10 months later than the TS25 and they are both of a similar age. Both of these cameras have different body design with the Olympus E-M1 being a SLR-style mirrorless camera and the Panasonic TS25 being a Compact camera.

Before we go straight to a thorough comparison, here is a brief summary of how the E-M1 matches up vs the TS25 when considering portability, imaging, features and an overall grade.

Following is a preview of the gallery photos for Olympus OM-D E-M1 & Panasonic Lumix DMC-TS25. The whole galleries are provided at Olympus E-M1 Gallery & Panasonic TS25 Gallery.

If you are planning to lug around your camera often, you need to think about its weight and proportions. The Olympus E-M1 provides exterior measurements of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") having a weight of 497 grams (1.10 lbs) while the Panasonic TS25 has measurements of 104mm x 58mm x 20mm (4.1" x 2.3" x 0.8") with a weight of 144 grams (0.32 lbs).

Compare the Olympus E-M1 and Panasonic TS25 in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary based on the lens you have chosen at that moment. The following is a front view dimensions comparison of the E-M1 and the TS25.

Taking into account dimensions and weight, the portability rating of the E-M1 and TS25 is 71 and 95 respectively.

Typically, its difficult to envision the contrast in sensor measurements just by viewing a spec sheet. The visual here will help offer you a clearer sense of the sensor sizing in the E-M1 and TS25.

As you can see, each of these cameras have the same megapixel count albeit not the same sensor measurements. The E-M1 provides the bigger sensor which is going to make obtaining shallower depth of field less difficult. The more recent E-M1 will have an edge when it comes to sensor innovation.