Olympus E-400 vs Pentax K20D

Following is a thorough comparison of the Olympus E-400 versus Pentax K20D, one is a Entry-Level DSLR and the other is a Advanced DSLR by brands Olympus and Pentax. There is a sizeable difference among the sensor resolutions of the E-400 (10MP) and K20D (15MP) and the E-400 (Four Thirds) and K20D (APS-C) enjoy totally different sensor sizing.

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The E-400 was revealed 21 months before the K20D making the cameras a generation away from each other. Each of the cameras come with different body type with the Olympus E-400 being a Compact SLR camera and the Pentax K20D being a Mid-size SLR camera.

Before going through a in-depth comparison, below is a simple summary of how the E-400 grades against the K20D in relation to portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Olympus E-400 and Pentax K20D. The full galleries are available at Olympus E-400 Gallery and Pentax K20D Gallery.

If you're planning to carry around your camera frequently, you're going to have to factor in its weight and proportions. The Olympus E-400 features outer dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") with a weight of 435 grams (0.96 lbs) whilst the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs).

Contrast the Olympus E-400 versus Pentax K20D in the latest Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with during that time. The following is the front view over all size comparison of the E-400 versus the K20D.

Taking into consideration size and weight, the portability score of the E-400 and K20D is 77 and 59 respectively.

Usually, it can be difficult to visualise the difference in sensor sizes just by researching specs. The picture here will help give you a greater sense of the sensor sizes in the E-400 and K20D.

As you can plainly see, both cameras posses different megapixels and different sensor sizes. The E-400 using its smaller sensor will make shooting shallow DOF more difficult and the Pentax K20D will provide you with more detail because of its extra 5 Megapixels. Greater resolution can also help you crop pics somewhat more aggressively. The more aged E-400 will be behind in sensor tech.