Olympus E-5 vs Pentax K-3 III

Here is a extensive overview of the Olympus E-5 and Pentax K-3 III, both Advanced DSLR digital cameras by brands Olympus and Pentax. There is a noticeable difference between the image resolutions of the E-5 (12MP) and K-3 III (26MP) and the E-5 (Four Thirds) and K-3 III (APS-C) provide different sensor sizing.

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The E-5 was announced 11 years prior to the K-3 III and that is quite a sizable difference as far as tech is concerned. Both of the cameras feature the same body design (Mid-size SLR).

Before we go right into a detailed comparison, here is a simple summary of how the E-5 matches up versus the K-3 III when it comes to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Olympus E-5 & Pentax K-3 Mark III. The whole galleries are viewable at Olympus E-5 Gallery & Pentax K-3 III Gallery.

When you are intending to carry your camera regularly, you will need to think about its weight and volume. The Olympus E-5 has got external measurements of 143mm x 117mm x 75mm (5.6" x 4.6" x 3.0") with a weight of 800 grams (1.76 lbs) and the Pentax K-3 III has sizing of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") having a weight of 820 grams (1.81 lbs).

Take a look at the Olympus E-5 and Pentax K-3 III in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change based on the lens you select at that moment. Following is a front view scale comparison of the E-5 against the K-3 III.

Factoring in size and weight, the portability rating of the E-5 and K-3 III is 58 and 58 respectively.

Often, it is hard to picture the contrast between sensor sizing purely by reading through a spec sheet. The photograph below might offer you a much better sense of the sensor sizing in the E-5 and K-3 III.

As you can see, the 2 cameras feature different resolutions and different sensor sizing. The E-5 using its tinier sensor is going to make getting bokeh more challenging and the Pentax K-3 III will resolve extra detail with its extra 14 Megapixels. Greater resolution will also help you crop images way more aggressively. The older E-5 is going to be disadvantaged in sensor innovation.