Olympus E-400 vs Olympus E-P3

Lets take a more detailed look at the Olympus E-400 and Olympus E-P3, one being a Entry-Level DSLR and the latter is a Entry-Level Mirrorless and both are sold by Olympus. The resolution of the E-400 (10MP) and the E-P3 (12MP) is pretty similar and they feature the same exact sensor measurements (Four Thirds).

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The E-400 was unveiled 5 years prior to the E-P3 and that is quite a serious 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 Olympus E-P3 being a Rangefinder-style mirrorless camera.

Before getting in to a detailed comparison, below is a concise view of how the E-400 matches up against the E-P3 in relation to portability, imaging, features and an overall grade.

Here is a preview of the gallery images for Olympus E-400 and Olympus PEN E-P3. The full galleries are viewable at Olympus E-400 Gallery and Olympus E-P3 Gallery.

If you are planning to lug around your camera, you are going to need to take into account its weight and volume. The Olympus E-400 comes with outer dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") along with a weight of 435 grams (0.96 lbs) while the Olympus E-P3 has sizing of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") and a weight of 369 grams (0.81 lbs).

See the Olympus E-400 and Olympus E-P3 in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with at that time. Below is the front view proportions comparison of the E-400 compared to the E-P3.

Taking into account size and weight, the portability grade of the E-400 and E-P3 is 77 and 86 respectively.

In many cases, it can be tough to picture the difference between sensor measurements just by reading specifications. The photograph below might provide you a clearer sense of the sensor dimensions in the E-400 and E-P3.

Plainly, both cameras enjoy the same exact sensor sizing albeit different resolution. You should expect the Olympus E-P3 to offer you more detail having an extra 2MP. Higher resolution will enable you to crop shots far more aggressively. The older E-400 is going to be disadvantaged with regard to sensor technology.