Ricoh GR Digital III vs Sigma fp

Here is a extensive assessment of the Ricoh GR Digital III and Sigma fp, one being a Small Sensor Compact and the other is a Advanced Mirrorless by brands Ricoh and Sigma. There exists a sizeable gap among the resolutions of the GR Digital III (10MP) and fp (25MP) and the GR Digital III (1/1.7") and fp (Full frame) boast different sensor dimensions.

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The GR Digital III was unveiled 11 years before the fp and that is a fairly large gap as far as camera technology is concerned. The two cameras feature different body design with the Ricoh GR Digital III being a Compact camera and the Sigma fp being a Rangefinder-style mirrorless camera.

Before we go into a more detailed comparison, here is a simple view of how the GR Digital III grades vs the fp in the way of portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Ricoh GR Digital III and Sigma fp. The full galleries are viewable at Ricoh GR Digital III Gallery and Sigma fp Gallery.

In case you're intending to carry your camera, you have to think about its weight and size. The Ricoh GR Digital III has got 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) while the Sigma fp has specifications of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") along with a weight of 422 grams (0.93 lbs).

See the Ricoh GR Digital III and Sigma fp in the new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are using at the time. Following is a front view size comparison of the GR Digital III compared to the fp.

Looking at dimensions and weight, the portability score of the GR Digital III and fp is 92 and 84 respectively.

More often than not, it's difficult to imagine the contrast in sensor sizing purely by viewing specs. The photograph below will help provide you a clearer sense of the sensor dimensions in the GR Digital III and fp.

All in all, the 2 cameras come with different megapixel count and different sensor sizing. The GR Digital III having a smaller sensor is going to make getting shallow depth of field trickier and the Sigma fp will result in more detail having an extra 15 Megapixels. Greater resolution will also enable you to crop images a good deal more aggressively. The older GR Digital III will be behind with regard to sensor innovation.