Sony A3000 vs Sony A900

The following is a thorough assessment of the Sony A3000 and Sony A900, former is a Entry-Level Mirrorless while the other is a Advanced DSLR and they are both created by Sony. The sensor resolution of the A3000 (20MP) and the A900 (25MP) is very similar but the A3000 (APS-C) and A900 (Full frame) posses totally different sensor measurements.

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The A3000 was unveiled 4 years after the A900 which is quite a large difference as far as tech is concerned. Both of the cameras have different body design with the Sony A3000 being a SLR-style mirrorless camera and the Sony A900 being a Mid-size SLR camera.

Before we go straight to a more detailed comparison, here is a simple summary of how the A3000 scores against the A900 in regards to portability, imaging, features and an overall mark.

This is a sample of the gallery pics for Sony Alpha A3000 & Sony Alpha DSLR-A900. The full galleries are provided at Sony A3000 Gallery & Sony A900 Gallery.

In case you're going to travel with your camera, you'll need to factor in its weight and proportions. The Sony A3000 enjoys exterior measurements of 128mm x 91mm x 85mm (5.0" x 3.6" x 3.3") along with a weight of 411 grams (0.91 lbs) while the Sony A900 has measurements of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") with a weight of 895 grams (1.97 lbs).

Look at the Sony A3000 and Sony A900 in our newest Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will change based on the lens you are employing during that time. Below is a front view dimensions comparison of the A3000 versus the A900.

Looking at size and weight, the portability grade of the A3000 and A900 is 69 and 54 respectively.

Generally, its difficult to see the contrast between sensor dimensions purely by reading a spec sheet. The pic below might provide you a greater sense of the sensor sizing in the A3000 and A900.

Clearly, each of these cameras provide different resolutions and different sensor dimensions. The A3000 with its tinier sensor will make shooting shallower DOF trickier and the Sony A900 will offer extra detail having an extra 5MP. Greater resolution will enable you to crop pics more aggressively. The newer A3000 is going to have a benefit in sensor tech.