Pentax K-S1 vs Pentax W90

Following is a extended overview of the Pentax K-S1 vs Pentax W90, former is a Advanced DSLR while the latter is a Waterproof and both of them are manufactured by Pentax. There exists a considerable gap between the image resolutions of the K-S1 (20MP) and W90 (12MP) and the K-S1 (APS-C) and W90 (1/2.3") provide totally different sensor sizes.

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The K-S1 was brought out 4 years after the W90 which is quite a large difference as far as technology is concerned. Each of the cameras feature different body design with the Pentax K-S1 being a Mid-size SLR camera and the Pentax W90 being a Compact camera.

Before going right into a detailed comparison, here is a quick view of how the K-S1 scores vs the W90 in the way of portability, imaging, features and an overall score.

Following is a preview of the gallery images for Pentax K-S1 & Pentax Optio W90. The entire galleries are viewable at Pentax K-S1 Gallery & Pentax W90 Gallery.

For anyone who is aiming to carry around your camera regularly, you will want to consider its weight and volume. The Pentax K-S1 has exterior measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") along with a weight of 558 grams (1.23 lbs) whilst the Pentax W90 has sizing of 108mm x 59mm x 25mm (4.3" x 2.3" x 1.0") with a weight of 164 grams (0.36 lbs).

Analyze the Pentax K-S1 vs Pentax W90 in our newest Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change dependant on the lens you are using at that moment. Below is a front view measurement comparison of the K-S1 versus the W90.

Factoring in dimensions and weight, the portability rating of the K-S1 and W90 is 69 and 94 respectively.

Typically, it can be difficult to envision the contrast between sensor sizes merely by checking a spec sheet. The picture below might provide you a better sense of the sensor measurements in the K-S1 and W90.

Clearly, both of these cameras come with different megapixels and different sensor sizes. The K-S1 due to its bigger sensor will make achieving shallower depth of field less difficult and the Pentax K-S1 will give you more detail having its extra 8 Megapixels. Higher resolution will also help you crop shots a good deal more aggressively. The younger K-S1 will have an edge with regard to sensor technology.