Nikon D3100 vs Olympus E-P3

In this write-up, we will be looking at the Nikon D3100 vs Olympus E-P3, former being a Entry-Level DSLR while the latter is a Entry-Level Mirrorless by manufacturers Nikon and Olympus. The resolution of the D3100 (14MP) and the E-P3 (12MP) is relatively similar but the D3100 (APS-C) and E-P3 (Four Thirds) use totally different sensor dimensions.

Snapchat Adds Watermarks to AI-Created Images

The D3100 was released 7 months before the E-P3 which means that they are both of a similar age. Each of these cameras offer different body type with the Nikon D3100 being a Compact SLR camera and the Olympus E-P3 being a Rangefinder-style mirrorless camera.

Before going in to a in depth comparison, below is a concise view of how the D3100 grades vs the E-P3 in regards to portability, imaging, features and an overall grade.

This is a preview of the gallery photos for Nikon D3100 & Olympus PEN E-P3. The complete galleries are viewable at Nikon D3100 Gallery & Olympus E-P3 Gallery.

In case you're planning to lug around your camera regularly, you will want to factor in its weight and size. The Nikon D3100 enjoys exterior measurements of 124mm x 96mm x 75mm (4.9" x 3.8" x 3.0") and a weight of 505 grams (1.11 lbs) whilst the Olympus E-P3 has specifications of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") along with a weight of 369 grams (0.81 lbs).

Compare the Nikon D3100 vs Olympus E-P3 in our brand new Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change depending on the lens you choose during that time. Here is the front view proportions comparison of the D3100 compared to the E-P3.

Looking at size and weight, the portability grade of the D3100 and E-P3 is 68 and 86 respectively.

Usually, it is difficult to visualise the difference between sensor measurements just by reading technical specs. The graphic below will give you a far better sense of the sensor sizing in the D3100 and E-P3.

As you have seen, both of those cameras enjoy different megapixel count and different sensor measurements. The D3100 because of its bigger sensor will make achieving shallower depth of field easier and the Nikon D3100 will deliver more detail as a result of its extra 2MP. Higher resolution will help you crop pictures far more aggressively. The older D3100 is going to be disadvantaged in sensor innovation.