Ricoh G900 vs Sigma SD9

Its time to take a deeper look at the Ricoh G900 and Sigma SD9, one being a Waterproof and the latter is a Advanced DSLR by rivals Ricoh and Sigma. There is a big difference between the sensor resolutions of the G900 (20MP) and SD9 (3MP) and the G900 (1/2.3") and SD9 (APS-C) boast totally different sensor measurements.

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The G900 was introduced 15 years later than the SD9 and that is quite a big gap as far as tech is concerned. Each of these cameras feature different body design with the Ricoh G900 being a Compact camera and the Sigma SD9 being a Mid-size SLR camera.

Before getting right into a in depth comparison, here is a short summation of how the G900 grades against the SD9 in regards to portability, imaging, features and an overall grade.

Below is a preview of the gallery images for Ricoh G900 and Sigma SD9. The whole galleries are available at Ricoh G900 Gallery and Sigma SD9 Gallery.

If you are going to lug around your camera, you will want to factor in its weight and proportions. The Ricoh G900 has external dimensions of 118mm x 66mm x 33mm (4.6" x 2.6" x 1.3") accompanied by a weight of 247 grams (0.54 lbs) and the Sigma SD9 has measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") along with a weight of 950 grams (2.09 lbs).

Compare the Ricoh G900 and Sigma SD9 in the all new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change dependant on the lens you have attached at that time. The following is a front view scale comparison of the G900 and the SD9.

Taking into consideration size and weight, the portability score of the G900 and SD9 is 89 and 54 respectively.

In many cases, it is very hard to visualise the difference between sensor measurements only by looking at technical specs. The graphic below will help offer you a better sense of the sensor sizes in the G900 and SD9.

As you have seen, the two cameras come with different megapixels and different sensor measurements. The G900 using its tinier sensor will make shooting shallower DOF trickier and the Ricoh G900 will give extra detail using its extra 17 Megapixels. Higher resolution can also let you crop shots a good deal more aggressively. The more recent G900 is going to have an edge with regard to sensor technology.