Pentax RZ10 vs Sony A58

On this page, we are comparing the Pentax RZ10 vs Sony A58, former being a Small Sensor Compact while the other is a Entry-Level DSLR by manufacturers Pentax and Sony. There exists a large gap between the sensor resolutions of the RZ10 (14MP) and A58 (20MP) and the RZ10 (1/2.3") and A58 (APS-C) offer totally different sensor sizes.

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The RZ10 was brought out 3 years prior to the A58 and that is quite a serious difference as far as technology is concerned. Both cameras have different body design with the Pentax RZ10 being a Compact camera and the Sony A58 being a Compact SLR camera.

Before getting into a full comparison, here is a short summary of how the RZ10 scores vs the A58 when it comes to portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Pentax Optio RZ10 & Sony SLT-A58. The entire galleries are provided at Pentax RZ10 Gallery & Sony A58 Gallery.

When you are aiming to lug around your camera frequently, you are going to need to take into account its weight and measurements. The Pentax RZ10 offers exterior dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") with a weight of 178 grams (0.39 lbs) while the Sony A58 has proportions of 129mm x 95mm x 78mm (5.1" x 3.7" x 3.1") accompanied by a weight of 492 grams (1.08 lbs).

Check out the Pentax RZ10 vs Sony A58 in our completely new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will differ based on the lens you are utilizing at that moment. Below is a front view proportions comparison of the RZ10 versus the A58.

Looking at dimensions and weight, the portability grade of the RZ10 and A58 is 92 and 68 respectively.

Typically, its difficult to envision the gap between sensor measurements just by checking technical specs. The photograph here might give you a clearer sense of the sensor sizes in the RZ10 and A58.

As you can tell, the 2 cameras have different megapixel count and different sensor measurements. The RZ10 because of its tinier sensor will make shooting shallow depth of field trickier and the Sony A58 will resolve extra detail having its extra 6MP. Greater resolution will help you crop photos a bit more aggressively. The older RZ10 is going to be disadvantaged when it comes to sensor technology.