Sigma fp vs Sony A58

Its time to look a bit more in depth at the Sigma fp and Sony A58, former is a Advanced Mirrorless while the latter is a Entry-Level DSLR by brands Sigma and Sony. There is a sizable difference among the resolutions of the fp (25MP) and A58 (20MP) and the fp (Full frame) and A58 (APS-C) feature totally different sensor dimensions.

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The fp was announced 5 years after the A58 which is a fairly significant difference as far as camera tech is concerned. Both of these cameras offer different body type with the Sigma fp being a Rangefinder-style mirrorless camera and the Sony A58 being a Compact SLR camera.

Before we go through a step-by-step comparison, below is a simple view of how the fp matches up vs the A58 when considering portability, imaging, features and an overall mark.

This is a preview of the gallery images for Sigma fp & Sony SLT-A58. The whole galleries are provided at Sigma fp Gallery & Sony A58 Gallery.

In case you're intending to travel with your camera, you will have to factor its weight and volume. The Sigma fp has external measurements of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") along with a weight of 422 grams (0.93 lbs) while the Sony A58 has sizing of 129mm x 95mm x 78mm (5.1" x 3.7" x 3.1") with a weight of 492 grams (1.08 lbs).

Analyze the Sigma fp and Sony A58 in our completely new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will vary depending on the lens you are using at the time. Here is the front view overall size comparison of the fp and the A58.

Taking into consideration size and weight, the portability rating of the fp and A58 is 84 and 68 respectively.

Generally, it is very difficult to visualise the gap in sensor dimensions merely by researching specs. The pic underneath will help give you a clearer sense of the sensor sizing in the fp and A58.

As you can plainly see, the 2 cameras offer different megapixels and different sensor dimensions. The fp having a bigger sensor will make achieving shallower DOF less difficult and the Sigma fp will render greater detail with its extra 5 Megapixels. Higher resolution can also allow you to crop pictures a little more aggressively. The more recent fp will have an edge in sensor innovation.