Ricoh GR Digital III vs Sony A77

Following is a complete analysis of the Ricoh GR Digital III vs Sony A77, one is a Small Sensor Compact and the latter is a Advanced DSLR by competitors Ricoh and Sony. There is a significant difference between the sensor resolutions of the GR Digital III (10MP) and A77 (24MP) and the GR Digital III (1/1.7") and A77 (APS-C) offer different sensor measurements.

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The GR Digital III was revealed 3 years before the A77 which is quite a sizable gap as far as tech is concerned. Both of these cameras feature different body design with the Ricoh GR Digital III being a Compact camera and the Sony A77 being a Mid-size SLR camera.

Before getting right into a more detailed comparison, here is a short view of how the GR Digital III scores vs the A77 with regards to portability, imaging, features and an overall score.

Below is a preview of the gallery photos for Ricoh GR Digital III and Sony SLT-A77. The full galleries are provided at Ricoh GR Digital III Gallery and Sony A77 Gallery.

If you're aiming to carry around your camera often, you're going to have to consider its weight and proportions. The Ricoh GR Digital III offers outside dimensions of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") having a weight of 208 grams (0.46 lbs) whilst the Sony A77 has measurements of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).

Compare the Ricoh GR Digital III vs Sony A77 in the all new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen at that time. Here is a front view sizing comparison of the GR Digital III versus the A77.

Looking at size and weight, the portability rating of the GR Digital III and A77 is 92 and 59 respectively.

In many cases, it is very hard to visualize the difference between sensor sizes simply by reviewing specs. The image below should provide you a clearer sense of the sensor sizes in the GR Digital III and A77.

All in all, both of the cameras feature different resolutions and different sensor sizes. The GR Digital III using its tinier sensor is going to make shooting shallower DOF trickier and the Sony A77 will offer you extra detail because of its extra 14 Megapixels. Higher resolution will also enable you to crop photographs way more aggressively. The more aged GR Digital III is going to be disadvantaged with regard to sensor innovation.