Olympus E-400 vs Pentax K-S1

Here, we are analyzing the Olympus E-400 versus Pentax K-S1, one is a Entry-Level DSLR and the other is a Advanced DSLR by competitors Olympus and Pentax. There exists a sizeable gap between the sensor resolutions of the E-400 (10MP) and K-S1 (20MP) and the E-400 (Four Thirds) and K-S1 (APS-C) provide different sensor sizing.

Photography Glossary

The E-400 was released 9 years before the K-S1 which is quite a large gap as far as technology is concerned. Both the cameras feature different body design with the Olympus E-400 being a Compact SLR camera and the Pentax K-S1 being a Mid-size SLR camera.

Before delving straight to a full comparison, here is a quick overview of how the E-400 matches up versus the K-S1 in relation to portability, imaging, features and an overall mark.

Here is a sample of the gallery pics for Olympus E-400 and Pentax K-S1. The complete galleries are provided at Olympus E-400 Gallery and Pentax K-S1 Gallery.

If you're going to travel with your camera, you will want to consider its weight and volume. The Olympus E-400 provides outer measurements of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") with a weight of 435 grams (0.96 lbs) while the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") having a weight of 558 grams (1.23 lbs).

Contrast the Olympus E-400 versus Pentax K-S1 in the new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ based on the lens you are using at that time. The following is a front view proportions comparison of the E-400 versus the K-S1.

Taking into consideration dimensions and weight, the portability grade of the E-400 and K-S1 is 77 and 69 respectively.

Typically, it's tough to visualize the contrast between sensor dimensions merely by reviewing a spec sheet. The picture here will give you a far better sense of the sensor sizing in the E-400 and K-S1.

As you can see, each of these cameras come with different megapixel count and different sensor dimensions. The E-400 due to its tinier sensor is going to make shooting shallow DOF harder and the Pentax K-S1 will deliver greater detail as a result of its extra 10MP. Greater resolution can also help you crop pics a good deal more aggressively. The more aged E-400 is going to be disadvantaged with regard to sensor tech.