Olympus E-520 vs Pentax K-3

Here is a extensive review of the Olympus E-520 and Pentax K-3, former being a Entry-Level DSLR while the other is a Advanced DSLR by competitors Olympus and Pentax. There exists a substantial gap between the sensor resolutions of the E-520 (10MP) and K-3 (24MP) and the E-520 (Four Thirds) and K-3 (APS-C) provide different sensor sizes.

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The E-520 was unveiled 6 years earlier than the K-3 and that is quite a big difference as far as technology is concerned. Both the cameras feature different body design with the Olympus E-520 being a Compact SLR camera and the Pentax K-3 being a Mid-size SLR camera.

Before delving into a thorough comparison, here is a simple introduction of how the E-520 grades versus the K-3 with regard to portability, imaging, features and an overall rating.

Below is a sample of the gallery pics for Olympus E-520 & Pentax K-3. The full galleries are viewable at Olympus E-520 Gallery & Pentax K-3 Gallery.

In case you're looking to carry your camera regularly, you'll need to factor its weight and volume. The Olympus E-520 has outer measurements of 136mm x 92mm x 68mm (5.4" x 3.6" x 2.7") with a weight of 552 grams (1.22 lbs) and the Pentax K-3 has sizing of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs).

Check the Olympus E-520 and Pentax K-3 in our completely new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will vary based on the lens you are utilising at that moment. Here is a front view overall size comparison of the E-520 against the K-3.

Considering dimensions and weight, the portability score of the E-520 and K-3 is 68 and 59 respectively.

Normally, its hard to imagine the contrast between sensor sizing purely by reviewing a spec sheet. The visual here might provide you a far better sense of the sensor measurements in the E-520 and K-3.

As you can see, both cameras come with different megapixels and different sensor sizing. The E-520 using its tinier sensor is going to make getting shallow depth of field more challenging and the Pentax K-3 will offer greater detail having an extra 14 Megapixels. Greater resolution will also make it easier to crop pics a good deal more aggressively. The older E-520 is going to be disadvantaged when it comes to sensor tech.