Sigma fp vs Sony A7S III

Below is a extended analysis of the Sigma fp and Sony A7S III, former being a Advanced Mirrorless while the other is a Pro Mirrorless by manufacturers Sigma and Sony. There is a large difference between the sensor resolutions of the fp (25MP) and A7S III (12MP) but they possess the same exact sensor measurements (Full frame).

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The fp was unveiled 12 months before the A7S III and they are both of a similar age. Both of these cameras offer different body type with the Sigma fp being a Rangefinder-style mirrorless camera and the Sony A7S III being a SLR-style mirrorless camera.

Before going through a in depth comparison, below is a concise introduction of how the fp matches up against the A7S III when it comes to portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Sigma fp & Sony Alpha A7S III. The full galleries are provided at Sigma fp Gallery & Sony A7S III Gallery.

When you are going to lug around your camera frequently, you are going to need to consider its weight and measurements. The Sigma fp offers physical measurements of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") with a weight of 422 grams (0.93 lbs) whilst the Sony A7S III has proportions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs).

Examine the Sigma fp and Sony A7S III in our brand new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ depending on the lens you are utilising at that moment. Here is the front view measurements comparison of the fp compared to the A7S III.

Considering size and weight, the portability grade of the fp and A7S III is 84 and 61 respectively.

Often, it is very hard to visualise the difference between sensor measurements merely by looking at specs. The photograph here should provide you a far better sense of the sensor measurements in the fp and A7S III.

As you can plainly see, each of the cameras offer the same exact sensor sizing but not the same MP. You can expect to see the Sigma fp to resolve greater detail having an extra 13MP. Greater resolution will also make it easier to crop photos a little more aggressively. The older fp is going to be behind when it comes to sensor tech.