Sony A7S III vs Sony A330

In this article, we will be contrasting the Sony A7S III and Sony A330, former is a Pro Mirrorless while the latter is a Entry-Level DSLR and they are both offered by Sony. The sensor resolution of the A7S III (12MP) and the A330 (10MP) is relatively comparable but the A7S III (Full frame) and A330 (APS-C) come with different sensor sizing.

Photography Glossary

The A7S III was unveiled 11 years after the A330 which is a fairly serious difference as far as camera technology is concerned. Both of the cameras offer different body type with the Sony A7S III being a SLR-style mirrorless camera and the Sony A330 being a Compact SLR camera.

Before diving straight into a full comparison, below is a short view of how the A7S III grades vs the A330 with respect to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Sony Alpha A7S III & Sony Alpha DSLR-A330. The full galleries are provided at Sony A7S III Gallery & Sony A330 Gallery.

If you are looking to carry around your camera often, you will have to factor its weight and measurements. The Sony A7S III comes with outside measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs) while the Sony A330 has proportions of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") accompanied by a weight of 529 grams (1.17 lbs).

Look at the Sony A7S III and Sony A330 in our completely new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will vary depending on the lens you are utilising at that time. Below is the front view sizing comparison of the A7S III vs the A330.

Taking into consideration dimensions and weight, the portability score of the A7S III and A330 is 61 and 67 respectively.

Quite often, its hard to picture the difference in sensor sizes merely by checking out a spec sheet. The pic underneath should offer you a clearer sense of the sensor sizing in the A7S III and A330.

As you can see, each of these cameras enjoy different resolutions and different sensor sizes. The A7S III using its bigger sensor is going to make achieving shallower depth of field simpler and the Sony A7S III will produce extra detail having an extra 2MP. Higher resolution will help you crop pictures far more aggressively. The more recent A7S III should have an advantage when it comes to sensor technology.