Sony A100 vs Sony RX100 III

Below, we will be looking at the Sony A100 vs Sony RX100 III, one being a Entry-Level DSLR and the latter is a Large Sensor Compact and they are both produced by Sony. There exists a huge gap between the image resolutions of the A100 (10MP) and RX100 III (20MP) and the A100 (APS-C) and RX100 III (1") feature different sensor size.

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The A100 was launched 8 years prior to the RX100 III and that is quite a significant gap as far as technology is concerned. Each of the cameras come with different body type with the Sony A100 being a Compact SLR camera and the Sony RX100 III being a Large Sensor Compact camera.

Before delving through a full comparison, below is a concise introduction of how the A100 scores vs the RX100 III in regards to portability, imaging, features and an overall grade.

Following is a preview of the gallery photos for Sony Alpha DSLR-A100 and Sony Cyber-shot DSC-RX100 III. The complete galleries are provided at Sony A100 Gallery and Sony RX100 III Gallery.

In case you're aiming to lug around your camera frequently, you're going to have to factor in its weight and volume. The Sony A100 has got outer dimensions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") having a weight of 638 grams (1.41 lbs) whilst the Sony RX100 III has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 290 grams (0.64 lbs).

See the Sony A100 vs Sony RX100 III in the all new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you choose during that time. The following is the front view measurements comparison of the A100 against the RX100 III.

Factoring in dimensions and weight, the portability score of the A100 and RX100 III is 64 and 89 respectively.

Sometimes, its tough to picture the gap between sensor measurements just by reading through technical specs. The visual underneath should give you a far better sense of the sensor sizes in the A100 and RX100 III.

As you can tell, the two cameras posses different resolutions and different sensor measurements. The A100 due to its bigger sensor is going to make shooting shallow depth of field easier and the Sony RX100 III will resolve greater detail utilizing its extra 10MP. Higher resolution can also help you crop pictures somewhat more aggressively. The older A100 is going to be disadvantaged when it comes to sensor tech.