Pentax K-S1 vs Sony A99

The following is a detailed comparison of the Pentax K-S1 vs Sony A99, both Advanced DSLR digital cameras by rivals Pentax and Sony. The image resolution of the K-S1 (20MP) and the A99 (24MP) is fairly well matched but the K-S1 (APS-C) and A99 (Full frame) posses different sensor size.

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The K-S1 was announced 21 months after the A99 making them a generation away from each other. Both of the cameras have the same body design (Mid-size SLR).

Before getting into a complete comparison, here is a concise summary of how the K-S1 matches up against the A99 with respect to portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Pentax K-S1 and Sony SLT-A99. The whole galleries are available at Pentax K-S1 Gallery and Sony A99 Gallery.

For anybody who is planning to travel with your camera often, you will have to factor in its weight and size. The Pentax K-S1 provides outside dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs) while the Sony A99 has specifications of 147mm x 111mm x 78mm (5.8" x 4.4" x 3.1") accompanied by a weight of 812 grams (1.79 lbs).

Analyze the Pentax K-S1 vs Sony A99 in the latest Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ based on the lens you are working with at that time. Below is a front view scale comparison of the K-S1 versus the A99.

Taking into account size and weight, the portability rating of the K-S1 and A99 is 69 and 57 respectively.

Oftentimes, its tough to picture the contrast between sensor dimensions purely by looking at technical specs. The pic here may give you a far better sense of the sensor dimensions in the K-S1 and A99.

As you have seen, both of those cameras provide different megapixels and different sensor dimensions. The K-S1 using its tinier sensor is going to make achieving shallower DOF trickier and the Sony A99 will give you extra detail with its extra 4MP. Greater resolution will enable you to crop images more aggressively. The younger K-S1 provides a benefit with regard to sensor innovation.