Pentax K-7 vs Pentax W90

Let's look a little more closely at the Pentax K-7 vs Pentax W90, one being a Advanced DSLR and the other is a Waterproof and both are designed by Pentax. There exists a huge gap between the resolutions of the K-7 (15MP) and W90 (12MP) and the K-7 (APS-C) and W90 (1/2.3") feature totally different sensor sizing.

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The K-7 was manufactured 4 months earlier than the W90 and they are both of a similar generation. Each of these cameras come with different body type with the Pentax K-7 being a Mid-size SLR camera and the Pentax W90 being a Compact camera.

Before delving straight into a in-depth comparison, below is a concise introduction of how the K-7 matches up against the W90 in regards to portability, imaging, features and an overall rating.

Below is a sample of the gallery pics for Pentax K-7 and Pentax Optio W90. The entire galleries are provided at Pentax K-7 Gallery and Pentax W90 Gallery.

When you are intending to carry your camera, you will have to consider its weight and proportions. The Pentax K-7 enjoys physical dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") and a weight of 750 grams (1.65 lbs) whilst the Pentax W90 has measurements of 108mm x 59mm x 25mm (4.3" x 2.3" x 1.0") with a weight of 164 grams (0.36 lbs).

See the Pentax K-7 vs Pentax W90 in the latest Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you are working with during that time. Here is the front view physical size comparison of the K-7 against the W90.

Taking into consideration dimensions and weight, the portability rating of the K-7 and W90 is 60 and 94 respectively.

More often than not, it can be hard to visualise the gap between sensor sizing purely by checking a spec sheet. The graphic here should give you a much better sense of the sensor sizes in the K-7 and W90.

Clearly, each of these cameras posses different megapixel count and different sensor sizing. The K-7 due to its larger sensor will make shooting shallower depth of field simpler and the Pentax K-7 will resolve more detail due to its extra 3MP. Greater resolution can also make it easier to crop images somewhat more aggressively.