Pentax P70 vs Sony A450

Here, we are analyzing the Pentax P70 and Sony A450, one being a Ultracompact and the other is a Entry-Level DSLR by competitors Pentax and Sony. The image resolution of the P70 (12MP) and the A450 (14MP) is very comparable but the P70 (1/2.3") and A450 (APS-C) have totally different sensor dimensions.

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The P70 was unveiled 10 months prior to the A450 and they are both of a similar generation. The two cameras feature different body design with the Pentax P70 being a Ultracompact camera and the Sony A450 being a Compact SLR camera.

Before we go into a thorough comparison, here is a brief introduction of how the P70 scores against the A450 when considering portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Pentax Optio P70 and Sony Alpha DSLR-A450. The full galleries are viewable at Pentax P70 Gallery and Sony A450 Gallery.

If you're intending to lug around your camera often, you'll have to think about its weight and dimensions. The Pentax P70 features physical dimensions of 97mm x 54mm x 22mm (3.8" x 2.1" x 0.9") along with a weight of 155 grams (0.34 lbs) while the Sony A450 has dimensions of 137mm x 104mm x 81mm (5.4" x 4.1" x 3.2") accompanied by a weight of 560 grams (1.23 lbs).

Contrast the Pentax P70 and Sony A450 in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary based on the lens you are using at the time. Here is a front view over all size comparison of the P70 versus the A450.

Taking into account dimensions and weight, the portability rating of the P70 and A450 is 95 and 65 respectively.

Normally, it is very difficult to visualise the difference in sensor measurements merely by checking out specs. The visual here should offer you a clearer sense of the sensor dimensions in the P70 and A450.

As you can plainly see, each of these cameras feature different megapixels and different sensor measurements. The P70 with its smaller sensor will make shooting shallow DOF tougher and the Sony A450 will produce greater detail having an extra 2 Megapixels. Greater resolution can also make it easier to crop pics way more aggressively. The older P70 will be behind in sensor tech.