Pentax K-7 vs Sony W510

Below, we will be comparing the Pentax K-7 vs Sony W510, one being a Advanced DSLR and the latter is a Ultracompact by manufacturers Pentax and Sony. There exists a big gap among the resolutions of the K-7 (15MP) and W510 (12MP) and the K-7 (APS-C) and W510 (1/2.3") come with totally different sensor size.

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The K-7 was unveiled 15 months before the W510 which makes the cameras a generation apart from one another. Both the cameras come with different body type with the Pentax K-7 being a Mid-size SLR camera and the Sony W510 being a Ultracompact camera.

Before diving in to a detailed comparison, below is a concise summation of how the K-7 scores vs the W510 in regards to portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Pentax K-7 and Sony Cyber-shot DSC-W510. The full galleries are available at Pentax K-7 Gallery and Sony W510 Gallery.

For those who are planning to carry your camera often, you'll have to factor in its weight and volume. The Pentax K-7 features external dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") having a weight of 750 grams (1.65 lbs) and the Sony W510 has sizing of 96mm x 54mm x 20mm (3.8" x 2.1" x 0.8") with a weight of 119 grams (0.26 lbs).

Compare the Pentax K-7 vs Sony W510 in the latest Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you use at that time. Below is the front view scale comparison of the K-7 compared to the W510.

Using dimensions and weight, the portability grade of the K-7 and W510 is 60 and 96 respectively.

Normally, it is tough to envision the gap in sensor sizing just by looking through specifications. The graphic below might provide you a more clear sense of the sensor sizes in the K-7 and W510.

Plainly, the 2 cameras posses different megapixel count and different sensor sizing. The K-7 with its bigger sensor will make shooting shallow depth of field easier and the Pentax K-7 will result in greater detail having an extra 3MP. Higher resolution will help you crop shots somewhat more aggressively. The older K-7 will be disadvantaged when it comes to sensor tech.