Ricoh GR Digital III vs Sony A58

Its time to take a closer look at the Ricoh GR Digital III vs Sony A58, one being a Small Sensor Compact and the other is a Entry-Level DSLR by brands Ricoh and Sony. There is a sizeable difference among the sensor resolutions of the GR Digital III (10MP) and A58 (20MP) and the GR Digital III (1/1.7") and A58 (APS-C) provide totally different sensor sizing.

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The GR Digital III was introduced 5 years before the A58 and that is a fairly large gap as far as camera tech is concerned. Both of the cameras have different body design with the Ricoh GR Digital III being a Compact camera and the Sony A58 being a Compact SLR camera.

Before getting into a comprehensive comparison, here is a simple overview of how the GR Digital III matches up against the A58 with regards to portability, imaging, features and an overall grade.

Here is a sample of the gallery pictures for Ricoh GR Digital III and Sony SLT-A58. The whole galleries are available at Ricoh GR Digital III Gallery and Sony A58 Gallery.

In case you're intending to lug around your camera frequently, you will need to factor in its weight and volume. The Ricoh GR Digital III offers outer measurements of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") and a weight of 208 grams (0.46 lbs) whilst the Sony A58 has sizing of 129mm x 95mm x 78mm (5.1" x 3.7" x 3.1") with a weight of 492 grams (1.08 lbs).

Compare the Ricoh GR Digital III vs Sony A58 in the new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change depending on the lens you have during that time. Here is a front view dimension comparison of the GR Digital III compared to the A58.

Using size and weight, the portability grade of the GR Digital III and A58 is 92 and 68 respectively.

Generally, it's difficult to visualise the gap in sensor measurements only by researching specs. The photograph here might provide you a better sense of the sensor measurements in the GR Digital III and A58.

As you can plainly see, each of these cameras have different megapixel count and different sensor measurements. The GR Digital III with its smaller sensor will make achieving shallow depth of field more difficult and the Sony A58 will provide you with more detail using its extra 10 Megapixels. Greater resolution can also enable you to crop photos a bit more aggressively. The older GR Digital III will be disadvantaged in sensor innovation.