Olympus E-M5 III vs Pentax ist DS2

Following is a extended review of the Olympus E-M5 III vs Pentax ist DS2, one is a Advanced Mirrorless and the other is a Advanced DSLR by competitors Olympus and Pentax. There is a significant difference between the image resolutions of the E-M5 III (20MP) and ist DS2 (6MP) and the E-M5 III (Four Thirds) and ist DS2 (APS-C) feature totally different sensor size.

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The E-M5 III was unveiled 14 years after the ist DS2 which is quite a sizable gap as far as tech is concerned. Both the cameras offer different body type with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax ist DS2 being a Mid-size SLR camera.

Before we go through a comprehensive comparison, below is a brief highlight of how the E-M5 III grades vs the ist DS2 with regard to portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Olympus OM-D E-M5 III and Pentax ist DS2. The full galleries are provided at Olympus E-M5 III Gallery and Pentax ist DS2 Gallery.

If you're aiming to carry around your camera, you are going to need to take into account its weight and volume. The Olympus E-M5 III has got external measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") and a weight of 414 grams (0.91 lbs) while the Pentax ist DS2 has sizing of 125mm x 93mm x 66mm (4.9" x 3.7" x 2.6") with a weight of 605 grams (1.33 lbs).

See the Olympus E-M5 III vs Pentax ist DS2 in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have chosen at the time. Below is the front view physical size comparison of the E-M5 III and the ist DS2.

Taking into account size and weight, the portability score of the E-M5 III and ist DS2 is 80 and 68 respectively.

Usually, its difficult to visualise the difference between sensor sizes purely by going over a spec sheet. The pic here should offer you a clearer sense of the sensor measurements in the E-M5 III and ist DS2.

Clearly, both of the cameras enjoy different megapixels and different sensor sizes. The E-M5 III having a tinier sensor will make achieving shallow depth of field harder and the Olympus E-M5 III will offer more detail having an extra 14MP. Greater resolution will enable you to crop pics far more aggressively. The fresher E-M5 III will have a benefit in sensor innovation.