Olympus E-1 vs Pentax K20D

Its time to look more closely at the Olympus E-1 vs Pentax K20D, former is a Pro DSLR while the other is a Advanced DSLR by manufacturers Olympus and Pentax. There is a considerable difference among the resolutions of the E-1 (5MP) and K20D (15MP) and the E-1 (Four Thirds) and K20D (APS-C) provide totally different sensor sizes.

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The E-1 was revealed 5 years before the K20D which is a fairly large difference as far as camera tech is concerned. Both the cameras have different body design with the Olympus E-1 being a Large SLR camera and the Pentax K20D being a Mid-size SLR camera.

Before going into a comprehensive comparison, here is a short synopsis of how the E-1 scores vs the K20D in relation to portability, imaging, features and an overall mark.

The following is a sample of the gallery pics for Olympus E-1 & Pentax K20D. The full galleries are available at Olympus E-1 Gallery & Pentax K20D Gallery.

For those who are going to travel with your camera often, you need to factor in its weight and proportions. The Olympus E-1 features outer dimensions of 141mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 735 grams (1.62 lbs) whilst the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).

Compare the Olympus E-1 vs Pentax K20D in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary depending on the lens you select at that time. Below is a front view proportions comparison of the E-1 vs the K20D.

Taking into consideration size and weight, the portability rating of the E-1 and K20D is 59 and 59 respectively.

Oftentimes, it can be tough to visualise the difference in sensor dimensions purely by seeing a spec sheet. The pic below will offer you a more clear sense of the sensor sizes in the E-1 and K20D.

Clearly, both of the cameras have different megapixels and different sensor dimensions. The E-1 using its smaller sensor will make getting shallow DOF more difficult and the Pentax K20D will produce greater detail because of its extra 10MP. Greater resolution can also make it easier to crop photos a bit more aggressively. The more aged E-1 will be behind with regard to sensor innovation.