Pentax K-7 vs Sony A100

On this page, we will be reviewing the Pentax K-7 versus Sony A100, former is a Advanced DSLR while the latter is a Entry-Level DSLR by brands Pentax and Sony. There exists a sizable gap among the resolutions of the K-7 (15MP) and A100 (10MP) but both cameras provide the same sensor measurements (APS-C).

Photography Glossary

The K-7 was unveiled 3 years after the A100 which is a fairly significant difference as far as camera technology is concerned. The two cameras have different body design with the Pentax K-7 being a Mid-size SLR camera and the Sony A100 being a Compact SLR camera.

Before delving right into a thorough comparison, here is a concise overview of how the K-7 grades versus the A100 in the way of portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Pentax K-7 & Sony Alpha DSLR-A100. The full galleries are viewable at Pentax K-7 Gallery & Sony A100 Gallery.

When you are intending to carry around your camera frequently, you have to factor its weight and measurements. The Pentax K-7 comes with exterior dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") having a weight of 750 grams (1.65 lbs) whilst the Sony A100 has proportions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") and a weight of 638 grams (1.41 lbs).

Examine the Pentax K-7 versus Sony A100 in our brand new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will change dependant on the lens you are working with at that moment. Below is a front view physical size comparison of the K-7 against the A100.

Looking at dimensions and weight, the portability grade of the K-7 and A100 is 60 and 64 respectively.

Quite often, its hard to visualize the contrast in sensor sizes only by checking out specs. The image underneath will help offer you a stronger sense of the sensor sizes in the K-7 and A100.

As you can plainly see, both the cameras provide the same sensor dimensions albeit different MP. You can count on the Pentax K-7 to show greater detail having an extra 5 Megapixels. Higher resolution can also let you crop photographs more aggressively. The more modern K-7 should have an edge in sensor innovation.