Olympus E-400 vs Olympus E-M5 III

Below, we will be reviewing the Olympus E-400 and Olympus E-M5 III, one being a Entry-Level DSLR and the latter is a Advanced Mirrorless and they are both designed by Olympus. There exists a huge gap among the sensor resolutions of the E-400 (10MP) and E-M5 III (20MP) but they come with the exact same sensor measurements (Four Thirds).

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The E-400 was unveiled 14 years before the E-M5 III and that is a fairly significant gap as far as camera technology is concerned. The two cameras come with different body type with the Olympus E-400 being a Compact SLR camera and the Olympus E-M5 III being a SLR-style mirrorless camera.

Before diving in to a comprehensive comparison, below is a concise overview of how the E-400 matches up versus the E-M5 III with respect to portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Olympus E-400 and Olympus OM-D E-M5 III. The full galleries are viewable at Olympus E-400 Gallery and Olympus E-M5 III Gallery.

If you are intending to carry your camera, you are going to need to take into account its weight and measurements. The Olympus E-400 provides outside measurements of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") with a weight of 435 grams (0.96 lbs) whilst the Olympus E-M5 III has proportions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs).

Look at the Olympus E-400 and Olympus E-M5 III in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you choose at that time. Following is the front view size comparison of the E-400 compared to the E-M5 III.

Looking at dimensions and weight, the portability grade of the E-400 and E-M5 III is 77 and 80 respectively.

Quite often, its difficult to visualise the gap in sensor sizing purely by seeing specifications. The visual below might give you a better sense of the sensor measurements in the E-400 and E-M5 III.

To sum up, both of these cameras have got the exact same sensor measurements albeit not the same megapixels. You should expect the Olympus E-M5 III to show greater detail having an extra 10 Megapixels. Higher resolution can also enable you to crop shots much more aggressively. The older E-400 will be disadvantaged when it comes to sensor tech.