Sony A390 vs Sony A900

Here is a extensive assessment of the Sony A390 vs Sony A900, former being a Entry-Level DSLR while the other is a Advanced DSLR and both are designed by Sony. There is a large difference between the resolutions of the A390 (14MP) and A900 (25MP) and the A390 (APS-C) and A900 (Full frame) feature different sensor sizes.

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The A390 was launched 22 months later than the A900 making the cameras a generation apart from each other. The two cameras offer different body type with the Sony A390 being a Compact SLR camera and the Sony A900 being a Mid-size SLR camera.

Before getting through a detailed comparison, below is a brief overview of how the A390 scores against the A900 in terms of portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Sony Alpha DSLR-A390 & Sony Alpha DSLR-A900. The complete galleries are provided at Sony A390 Gallery & Sony A900 Gallery.

For anybody who is looking to carry your camera, you'll need to factor in its weight and proportions. The Sony A390 offers exterior dimensions of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") having a weight of 549 grams (1.21 lbs) and the Sony A900 has measurements of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Contrast the Sony A390 vs Sony A900 in our brand new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change depending on the lens you are employing at that time. Here is the front view dimensions comparison of the A390 vs the A900.

Factoring in size and weight, the portability score of the A390 and A900 is 66 and 54 respectively.

Often, it is very tough to visualize the contrast between sensor sizing only by going over a spec sheet. The graphic below will provide you a stronger sense of the sensor dimensions in the A390 and A900.

Clearly, both of these cameras offer different megapixels and different sensor sizing. The A390 due to its tinier sensor is going to make shooting shallow DOF more difficult and the Sony A900 will offer more detail utilizing its extra 11MP. Greater resolution will also enable you to crop photos a little more aggressively. The newer A390 should have a benefit when it comes to sensor tech.