Ricoh GXR Mount A12 vs Sigma SD1

Here is a in-depth assessment of the Ricoh GXR Mount A12 versus Sigma SD1, one being a Entry-Level Mirrorless and the latter is a Advanced DSLR by competitors Ricoh and Sigma. The resolution of the GXR Mount A12 (12MP) and the SD1 (15MP) is pretty well matched and both cameras have the same sensor sizes (APS-C).

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The GXR Mount A12 was brought out 11 months later than the SD1 so they are both of a similar generation. Both cameras have different body design with the Ricoh GXR Mount A12 being a Rangefinder-style mirrorless camera and the Sigma SD1 being a Mid-size SLR camera.

Before going into a complete comparison, here is a brief view of how the GXR Mount A12 scores versus the SD1 in relation to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Ricoh GXR Mount A12 and Sigma SD1. The entire galleries are provided at Ricoh GXR Mount A12 Gallery and Sigma SD1 Gallery.

For anyone who is planning to carry your camera frequently, you will have to factor its weight and proportions. The Ricoh GXR Mount A12 has got exterior dimensions of 120mm x 70mm x 45mm (4.7" x 2.8" x 1.8") along with a weight of 370 grams (0.82 lbs) and the Sigma SD1 has measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") along with a weight of n/a grams (0.00 lbs).

Analyze the Ricoh GXR Mount A12 versus Sigma SD1 in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you have chosen during that time. Following is a front view over all size comparison of the GXR Mount A12 and the SD1.

Using size and weight, the portability rating of the GXR Mount A12 and SD1 is 84 and 77 respectively.

Often, it is hard to see the gap between sensor sizing only by looking at a spec sheet. The graphic underneath will help give you a clearer sense of the sensor sizes in the GXR Mount A12 and SD1.

As you can see, the 2 cameras provide the same sensor dimensions albeit not the same megapixels. You should expect the Sigma SD1 to resolve extra detail having its extra 3MP. Higher resolution will also let you crop photographs more aggressively. The more recent GXR Mount A12 is going to have an edge with regard to sensor innovation.