Olympus E-420 vs Pentax K-3 II

In this write-up, we will be comparing the Olympus E-420 versus Pentax K-3 II, one is a Entry-Level DSLR and the latter is a Advanced DSLR by brands Olympus and Pentax. There exists a sizeable gap between the image resolutions of the E-420 (10MP) and K-3 II (24MP) and the E-420 (Four Thirds) and K-3 II (APS-C) use different sensor sizing.

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The E-420 was manufactured 7 years prior to the K-3 II which is quite a large gap as far as technology is concerned. Both of these cameras offer different body type with the Olympus E-420 being a Compact SLR camera and the Pentax K-3 II being a Mid-size SLR camera.

Before getting straight into a comprehensive comparison, below is a quick overview of how the E-420 matches up against the K-3 II for portability, imaging, features and an overall score.

Following is a preview of the gallery images for Olympus E-420 and Pentax K-3 II. The entire galleries are provided at Olympus E-420 Gallery and Pentax K-3 II Gallery.

If you're aiming to carry around your camera often, you will want to take into account its weight and size. The Olympus E-420 features exterior dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") with a weight of 426 grams (0.94 lbs) while the Pentax K-3 II has specifications of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs).

Take a look at the Olympus E-420 versus Pentax K-3 II in the all new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are employing at the time. The following is the front view over all size comparison of the E-420 compared to the K-3 II.

Looking at dimensions and weight, the portability score of the E-420 and K-3 II is 77 and 59 respectively.

Normally, it can be tough to visualize the contrast between sensor sizes only by reading through technical specs. The pic here will provide you a far better sense of the sensor sizes in the E-420 and K-3 II.

As you have seen, both of those cameras enjoy different resolutions and different sensor sizes. The E-420 featuring a tinier sensor is going to make shooting shallow DOF trickier and the Pentax K-3 II will resolve extra detail due to its extra 14 Megapixels. Higher resolution will also make it easier to crop pictures far more aggressively. The more aged E-420 is going to be behind in sensor tech.