Ricoh G900 vs Sigma SD15

Below, we will be evaluating the Ricoh G900 and Sigma SD15, former being a Waterproof while the latter is a Advanced DSLR by companies Ricoh and Sigma. There exists a sizable gap between the sensor resolutions of the G900 (20MP) and SD15 (5MP) and the G900 (1/2.3") and SD15 (APS-C) come with different sensor dimensions.

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The G900 was introduced 8 years later than the SD15 and that is quite a significant difference as far as technology is concerned. Each of the cameras come with different body type with the Ricoh G900 being a Compact camera and the Sigma SD15 being a Mid-size SLR camera.

Before diving through a in depth comparison, below is a quick synopsis of how the G900 matches up versus the SD15 for portability, imaging, features and an overall grade.

Below is a preview of the gallery photos for Ricoh G900 & Sigma SD15. The whole galleries are available at Ricoh G900 Gallery & Sigma SD15 Gallery.

For those who are planning to lug around your camera frequently, you should factor its weight and volume. The Ricoh G900 features outside dimensions of 118mm x 66mm x 33mm (4.6" x 2.6" x 1.3") with a weight of 247 grams (0.54 lbs) whilst the Sigma SD15 has sizing of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") accompanied by a weight of 750 grams (1.65 lbs).

Look at the Ricoh G900 and Sigma SD15 in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary dependant on the lens you have attached at that moment. Here is the front view scale comparison of the G900 vs the SD15.

Factoring in dimensions and weight, the portability score of the G900 and SD15 is 89 and 59 respectively.

Normally, it's hard to picture the gap between sensor measurements purely by reading through a spec sheet. The visual here should offer you a greater sense of the sensor dimensions in the G900 and SD15.

As you can see, both of those cameras have got different megapixel count and different sensor measurements. The G900 using its tinier sensor is going to make achieving bokeh trickier and the Ricoh G900 will give you greater detail using its extra 15 Megapixels. Higher resolution can also help you crop shots much more aggressively. The more recent G900 should have an edge in sensor tech.