Pentax E70 vs Sony A100

Here, we are reviewing the Pentax E70 and Sony A100, one is a Small Sensor Compact and the other is a Entry-Level DSLR by brands Pentax and Sony. The resolution of the E70 (10MP) and the A100 (10MP) is fairly well matched but the E70 (1/2.3") and A100 (APS-C) have different sensor dimensions.

Photography Glossary

The E70 was announced 2 years after the A100 which is quite a big gap as far as tech is concerned. Both of the cameras feature different body design with the Pentax E70 being a Compact camera and the Sony A100 being a Compact SLR camera.

Before going into a more detailed comparison, here is a quick synopsis of how the E70 scores versus the A100 in the way of portability, imaging, features and an overall score.

Below is a sample of the gallery pictures for Pentax Optio E70 and Sony Alpha DSLR-A100. The whole galleries are provided at Pentax E70 Gallery and Sony A100 Gallery.

When you are going to carry around your camera often, you'll need to take into account its weight and dimensions. The Pentax E70 enjoys external dimensions of 94mm x 61mm x 26mm (3.7" x 2.4" x 1.0") along with a weight of 175 grams (0.39 lbs) while the Sony A100 has dimensions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") accompanied by a weight of 638 grams (1.41 lbs).

Compare the Pentax E70 and Sony A100 in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are employing at that moment. Below is a front view dimension comparison of the E70 against the A100.

Taking into account size and weight, the portability score of the E70 and A100 is 94 and 64 respectively.

Usually, it can be tough to imagine the contrast between sensor sizes purely by checking technical specs. The pic here may offer you a much better sense of the sensor dimensions in the E70 and A100.

As you have seen, both of these cameras come with the identical MP but different sensor sizes. The E70 provides the tinier sensor which is going to make achieving shallower depth of field harder. The more modern E70 should have an edge when it comes to sensor tech.