Olympus E-P3 vs Panasonic S1R

Here is a detailed overview of the Olympus E-P3 and Panasonic S1R, former being a Entry-Level Mirrorless while the other is a Pro Mirrorless by companies Olympus and Panasonic. There is a noticeable difference between the image resolutions of the E-P3 (12MP) and S1R (47MP) and the E-P3 (Four Thirds) and S1R (Full frame) use different sensor sizes.

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The E-P3 was launched 8 years before the S1R and that is quite a sizable difference as far as tech is concerned. Both the cameras come with different body type with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Panasonic S1R being a SLR-style mirrorless camera.

Before delving in to a more detailed comparison, below is a short introduction of how the E-P3 scores vs the S1R with regard to portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Olympus PEN E-P3 & Panasonic Lumix DC-S1R. The complete galleries are provided at Olympus E-P3 Gallery & Panasonic S1R Gallery.

For anybody who is intending to carry your camera often, you should consider its weight and size. The Olympus E-P3 provides exterior dimensions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") having a weight of 369 grams (0.81 lbs) while the Panasonic S1R has specifications of 149mm x 110mm x 97mm (5.9" x 4.3" x 3.8") having a weight of 1020 grams (2.25 lbs).

Look at the Olympus E-P3 and Panasonic S1R in our newest Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ depending on the lens you are utilizing at the time. Here is the front view physical size comparison of the E-P3 vs the S1R.

Considering size and weight, the portability grade of the E-P3 and S1R is 86 and 54 respectively.

In many cases, it is very hard to visualize the gap between sensor sizing simply by reviewing specs. The graphic below might provide you a greater sense of the sensor sizes in the E-P3 and S1R.

All in all, both of these cameras posses different resolutions and different sensor sizing. The E-P3 featuring a tinier sensor is going to make getting shallow DOF more difficult and the Panasonic S1R will offer you more detail utilizing its extra 35MP. Greater resolution can also let you crop photos somewhat more aggressively. The older E-P3 is going to be behind with regard to sensor tech.