Olympus E-400 vs Sony A7S II

In this write-up, we are evaluating the Olympus E-400 versus Sony A7S II, one is a Entry-Level DSLR and the other is a Pro Mirrorless by companies Olympus and Sony. The image resolution of the E-400 (10MP) and the A7S II (12MP) is fairly well matched but the E-400 (Four Thirds) and A7S II (Full frame) possess different sensor measurements.

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The E-400 was announced 10 years earlier than the A7S II which is quite a significant gap as far as tech is concerned. Each of these cameras offer different body type with the Olympus E-400 being a Compact SLR camera and the Sony A7S II being a SLR-style mirrorless camera.

Before getting straight into a full comparison, below is a brief summary of how the E-400 matches up versus the A7S II when considering portability, imaging, features and an overall score.

Here is a sample of the gallery pictures for Olympus E-400 and Sony Alpha A7S II. The whole galleries are viewable at Olympus E-400 Gallery and Sony A7S II Gallery.

If you are aiming to carry around your camera frequently, you'll need to take into account its weight and size. The Olympus E-400 features physical measurements of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") along with a weight of 435 grams (0.96 lbs) whilst the Sony A7S II has specifications of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") having a weight of 627 grams (1.38 lbs).

Compare the Olympus E-400 versus Sony A7S II in the latest Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you have attached at the time. Underneath is the front view over all size comparison of the E-400 versus the A7S II.

Using size and weight, the portability score of the E-400 and A7S II is 77 and 68 respectively.

Often, it's tough to visualize the contrast between sensor sizes simply by checking specs. The picture underneath will provide you a more clear sense of the sensor sizing in the E-400 and A7S II.

As you can plainly see, both of these cameras enjoy different megapixel count and different sensor sizes. The E-400 having a tinier sensor is going to make achieving shallow DOF more difficult and the Sony A7S II will resolve more detail with its extra 2 Megapixels. Greater resolution will also help you crop photos far more aggressively. The more aged E-400 is going to be disadvantaged with regard to sensor tech.