Pentax K-S1 vs Pentax E90

Its time to look closer at the Pentax K-S1 vs Pentax E90, former is a Advanced DSLR while the latter is a Small Sensor Compact and both of them are built by Pentax. There exists a substantial gap between the resolutions of the K-S1 (20MP) and E90 (10MP) and the K-S1 (APS-C) and E90 (1/2.3") feature different sensor dimensions.

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The K-S1 was manufactured 4 years after the E90 which is quite a big difference as far as technology is concerned. Each of these cameras offer different body type with the Pentax K-S1 being a Mid-size SLR camera and the Pentax E90 being a Compact camera.

Before going straight into a complete comparison, below is a simple summary of how the K-S1 grades vs the E90 with regards to portability, imaging, features and an overall mark.

This is a preview of the gallery photos for Pentax K-S1 & Pentax Optio E90. The entire galleries are available at Pentax K-S1 Gallery & Pentax E90 Gallery.

For those who are going to travel with your camera, you will need to factor its weight and proportions. The Pentax K-S1 offers physical measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") with a weight of 558 grams (1.23 lbs) while the Pentax E90 has measurements of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") with a weight of 145 grams (0.32 lbs).

Take a look at the Pentax K-S1 vs Pentax E90 in our brand new Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ based on the lens you are utilizing at that time. The following is the front view over all size comparison of the K-S1 against the E90.

Taking into account dimensions and weight, the portability rating of the K-S1 and E90 is 69 and 94 respectively.

Quite often, it is difficult to imagine the difference between sensor dimensions just by looking at a spec sheet. The picture here might give you a much better sense of the sensor sizing in the K-S1 and E90.

As you can see, the 2 cameras offer different resolutions and different sensor dimensions. The K-S1 because of its bigger sensor is going to make getting bokeh easier and the Pentax K-S1 will resolve greater detail due to its extra 10MP. Higher resolution will let you crop photographs a little more aggressively. The newer K-S1 provides an edge with regard to sensor innovation.