Ricoh GR Digital III vs Sony A390

Here is a extensive assessment of the Ricoh GR Digital III and Sony A390, former being a Small Sensor Compact while the latter is a Entry-Level DSLR by rivals Ricoh and Sony. There exists a sizable gap between the resolutions of the GR Digital III (10MP) and A390 (14MP) and the GR Digital III (1/1.7") and A390 (APS-C) possess different sensor dimensions.

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The GR Digital III was announced 12 months earlier than the A390 so they are both of a similar age. Both the cameras offer different body type with the Ricoh GR Digital III being a Compact camera and the Sony A390 being a Compact SLR camera.

Before delving through a thorough comparison, below is a brief introduction of how the GR Digital III grades vs the A390 when it comes to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Ricoh GR Digital III & Sony Alpha DSLR-A390. The whole galleries are viewable at Ricoh GR Digital III Gallery & Sony A390 Gallery.

For anyone who is looking to carry your camera frequently, you need to think about its weight and dimensions. The Ricoh GR Digital III features exterior dimensions of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") along with a weight of 208 grams (0.46 lbs) while the Sony A390 has dimensions of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") and a weight of 549 grams (1.21 lbs).

Take a look at the Ricoh GR Digital III and Sony A390 in our brand new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary based on the lens you have at that moment. Below is the front view overall size comparison of the GR Digital III versus the A390.

Considering dimensions and weight, the portability score of the GR Digital III and A390 is 92 and 66 respectively.

More often than not, it can be hard to visualize the gap between sensor sizing just by reading technical specs. The visual here may give you a more clear sense of the sensor dimensions in the GR Digital III and A390.

As you have seen, both the cameras offer different megapixels and different sensor sizing. The GR Digital III using its tinier sensor is going to make achieving shallower DOF harder and the Sony A390 will offer greater detail with its extra 4 Megapixels. Higher resolution can also allow you to crop pictures a little more aggressively. The older GR Digital III is going to be disadvantaged in sensor technology.