Olympus E-420 vs Pentax K-S1

Let's look more closely at the Olympus E-420 versus Pentax K-S1, former is a Entry-Level DSLR while the latter is a Advanced DSLR by manufacturers Olympus and Pentax. There is a considerable difference between the image resolutions of the E-420 (10MP) and K-S1 (20MP) and the E-420 (Four Thirds) and K-S1 (APS-C) offer different sensor sizes.

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The E-420 was manufactured 7 years prior to the K-S1 which is quite a large difference as far as tech is concerned. Both cameras have different body design with the Olympus E-420 being a Compact SLR camera and the Pentax K-S1 being a Mid-size SLR camera.

Before we go straight to a in-depth comparison, here is a quick summation of how the E-420 grades vs the K-S1 with regard to portability, imaging, features and an overall mark.

The following is a preview of the gallery photos for Olympus E-420 & Pentax K-S1. The entire galleries are provided at Olympus E-420 Gallery & Pentax K-S1 Gallery.

For anybody who is intending to travel with your camera often, you are going to need to factor its weight and volume. The Olympus E-420 provides outer dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") and a weight of 426 grams (0.94 lbs) whilst the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") with a weight of 558 grams (1.23 lbs).

Check the Olympus E-420 versus Pentax K-S1 in our brand new Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will vary depending on the lens you are utilizing at that moment. Underneath is a front view measurement comparison of the E-420 vs the K-S1.

Looking at size and weight, the portability score of the E-420 and K-S1 is 77 and 69 respectively.

In many cases, it's hard to imagine the gap between sensor dimensions just by reading through specs. The pic here will offer you a better sense of the sensor sizes in the E-420 and K-S1.

As you can plainly see, both of these cameras provide different megapixels and different sensor dimensions. The E-420 due to its tinier sensor is going to make achieving bokeh more difficult and the Pentax K-S1 will give extra detail due to its extra 10 Megapixels. Higher resolution can also make it easier to crop shots more aggressively. The more aged E-420 is going to be disadvantaged in sensor tech.