Sony A7 III vs Sony A390

Here, we are analyzing the Sony A7 III and Sony A390, one is a Pro Mirrorless and the other is a Entry-Level DSLR and both are designed by Sony. There exists a big gap among the sensor resolutions of the A7 III (24MP) and A390 (14MP) and the A7 III (Full frame) and A390 (APS-C) offer totally different sensor dimensions.

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The A7 III was revealed 7 years after the A390 which is a fairly big gap as far as camera technology is concerned. Both the cameras feature different body design with the Sony A7 III being a SLR-style mirrorless camera and the Sony A390 being a Compact SLR camera.

Before diving into a thorough comparison, here is a short synopsis of how the A7 III grades vs the A390 in the way of portability, imaging, features and an overall score.

Here is a sample of the gallery pictures for Sony Alpha A7 III and Sony Alpha DSLR-A390. The full galleries are provided at Sony A7 III Gallery and Sony A390 Gallery.

If you're looking to carry around your camera regularly, you should think about its weight and proportions. The Sony A7 III offers external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 650 grams (1.43 lbs) while the Sony A390 has measurements of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") accompanied by a weight of 549 grams (1.21 lbs).

Look at the Sony A7 III and Sony A390 in the new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you select at that moment. The following is a front view measurement comparison of the A7 III versus the A390.

Taking into consideration dimensions and weight, the portability rating of the A7 III and A390 is 63 and 66 respectively.

Quite often, it's difficult to envision the contrast in sensor sizes purely by looking through technical specs. The picture here will provide you a stronger sense of the sensor sizing in the A7 III and A390.

As you can tell, each of the cameras come with different resolutions and different sensor sizes. The A7 III having a larger sensor will make shooting bokeh easier and the Sony A7 III will provide you with extra detail because of its extra 10MP. Greater resolution will make it easier to crop images a good deal more aggressively. The younger A7 III is going to have an advantage with regard to sensor technology.