Sigma Quattro vs Sony A99

Let's look a little more in depth at the Sigma Quattro and Sony A99, one being a Advanced Mirrorless and the other is a Advanced DSLR by rivals Sigma and Sony. There is a sizeable difference among the image resolutions of the Quattro (29MP) and A99 (24MP) and the Quattro (APS-C) and A99 (Full frame) have different sensor dimensions.

Photography Glossary

The Quattro was announced 3 years later than the A99 and that is a fairly large gap as far as camera tech is concerned. The two cameras have different body design with the Sigma Quattro being a Rangefinder-style mirrorless camera and the Sony A99 being a Mid-size SLR camera.

Before we go right into a comprehensive comparison, here is a concise introduction of how the Quattro matches up vs the A99 in regards to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Sigma sd Quattro and Sony SLT-A99. The whole galleries are viewable at Sigma Quattro Gallery and Sony A99 Gallery.

If you're going to carry your camera often, you're going to have to take into account its weight and measurements. The Sigma Quattro has got outside dimensions of 147mm x 95mm x 91mm (5.8" x 3.7" x 3.6") having a weight of 625 grams (1.38 lbs) whilst the Sony A99 has proportions of 147mm x 111mm x 78mm (5.8" x 4.4" x 3.1") accompanied by a weight of 812 grams (1.79 lbs).

See the Sigma Quattro and Sony A99 in the latest Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen at that time. The following is a front view measurement comparison of the Quattro versus the A99.

Taking into consideration size and weight, the portability score of the Quattro and A99 is 63 and 57 respectively.

Usually, it is very difficult to picture the contrast in sensor sizing just by seeing specs. The visual below might provide you a better sense of the sensor sizes in the Quattro and A99.

As you can plainly see, each of these cameras provide different resolutions and different sensor sizing. The Quattro having a smaller sensor is going to make achieving bokeh harder and the Sigma Quattro will show more detail with its extra 5MP. Greater resolution will help you crop photos more aggressively. The younger Quattro should have an advantage with regard to sensor technology.