Sony A390 vs Sony RX100 III

Let's look a bit more closely at the Sony A390 versus Sony RX100 III, one is a Entry-Level DSLR and the latter is a Large Sensor Compact and both are sold by Sony. There exists a huge gap between the sensor resolutions of the A390 (14MP) and RX100 III (20MP) and the A390 (APS-C) and RX100 III (1") enjoy totally different sensor measurements.

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The A390 was manufactured 4 years earlier than the RX100 III which is quite a significant gap as far as technology is concerned. Both the cameras come with different body type with the Sony A390 being a Compact SLR camera and the Sony RX100 III being a Large Sensor Compact camera.

Before getting straight into a full comparison, below is a concise synopsis of how the A390 matches up versus the RX100 III when it comes to portability, imaging, features and an overall score.

Below is a preview of the gallery photos for Sony Alpha DSLR-A390 and Sony Cyber-shot DSC-RX100 III. The entire galleries are available at Sony A390 Gallery and Sony RX100 III Gallery.

For anyone who is going to carry around your camera regularly, you'll have to factor in its weight and measurements. The Sony A390 provides exterior measurements of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") with a weight of 549 grams (1.21 lbs) while the Sony RX100 III has proportions of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") and a weight of 290 grams (0.64 lbs).

Take a look at the Sony A390 versus Sony RX100 III in the new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are working with at that moment. Following is the front view measurement comparison of the A390 and the RX100 III.

Taking into account dimensions and weight, the portability score of the A390 and RX100 III is 66 and 89 respectively.

Quite often, it's tough to envision the gap between sensor sizes just by reading technical specs. The picture here might offer you a much better sense of the sensor sizing in the A390 and RX100 III.

As you have seen, each of these cameras have got different megapixel count and different sensor sizes. The A390 featuring a bigger sensor will make achieving shallower depth of field simpler and the Sony RX100 III will offer you greater detail due to its extra 6MP. Higher resolution can also help you crop photographs much more aggressively. The more aged A390 is going to be behind in sensor technology.