Nikon D100 vs Pentax K20D

The following is a complete comparison of the Nikon D100 and Pentax K20D, both Advanced DSLR cameras by competitors Nikon and Pentax. There exists a substantial gap among the sensor resolutions of the D100 (6MP) and K20D (15MP) but they feature the same exact sensor dimensions (APS-C).

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The D100 was announced 7 years before the K20D which is a fairly big difference as far as camera technology is concerned. Each of the cameras offer the identical body type (Mid-size SLR).

Before diving in to a detailed comparison, below is a short introduction of how the D100 matches up versus the K20D when considering portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Nikon D100 & Pentax K20D. The whole galleries are available at Nikon D100 Gallery & Pentax K20D Gallery.

When you are aiming to travel with your camera often, you are going to need to factor in its weight and size. The Nikon D100 offers outer dimensions of 144mm x 116mm x 81mm (5.7" x 4.6" x 3.2") having a weight of 780 grams (1.72 lbs) and the Pentax K20D has specifications of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

Take a look at the Nikon D100 and Pentax K20D in our newest Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will change based on the lens you are using at that moment. Here is the front view dimensions comparison of the D100 compared to the K20D.

Looking at dimensions and weight, the portability score of the D100 and K20D is 58 and 59 respectively.

More often than not, it is difficult to visualize the difference in sensor dimensions just by checking out a spec sheet. The picture underneath will give you a more clear sense of the sensor dimensions in the D100 and K20D.

As you can see, the 2 cameras enjoy the same exact sensor sizing albeit different megapixels. You can expect the Pentax K20D to produce more detail with its extra 9MP. Higher resolution will allow you to crop shots far more aggressively. The more aged D100 will be disadvantaged with regard to sensor innovation.