Nikon D5100 vs Olympus E-M1 II

Lets take a closer look at the Nikon D5100 versus Olympus E-M1 II, one being a Entry-Level DSLR and the latter is a Pro Mirrorless by rivals Nikon and Olympus. The resolution of the D5100 (16MP) and the E-M1 II (20MP) is pretty similar but the D5100 (APS-C) and E-M1 II (Four Thirds) possess totally different sensor sizes.

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The D5100 was introduced 6 years prior to the E-M1 II and that is quite a serious gap as far as tech is concerned. Each of the cameras offer different body type with the Nikon D5100 being a Compact SLR camera and the Olympus E-M1 II being a SLR-style mirrorless camera.

Before going in to a more detailed comparison, below is a concise introduction of how the D5100 grades against the E-M1 II for portability, imaging, features and an overall rating.

This is a preview of the gallery images for Nikon D5100 and Olympus OM-D E-M1 Mark II. The whole galleries are provided at Nikon D5100 Gallery and Olympus E-M1 II Gallery.

For those who are planning to carry your camera frequently, you are going to need to factor its weight and volume. The Nikon D5100 features external measurements of 128mm x 97mm x 79mm (5.0" x 3.8" x 3.1") along with a weight of 560 grams (1.23 lbs) whilst the Olympus E-M1 II has sizing of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") along with a weight of 574 grams (1.27 lbs).

Analyze the Nikon D5100 versus Olympus E-M1 II in the new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will vary depending on the lens you choose at the time. Following is the front view measurement comparison of the D5100 versus the E-M1 II.

Looking at size and weight, the portability grade of the D5100 and E-M1 II is 66 and 68 respectively.

In many cases, it can be tough to visualise the contrast between sensor sizing just by going over specs. The visual here might give you a greater sense of the sensor measurements in the D5100 and E-M1 II.

As you can plainly see, both cameras offer different resolutions and different sensor sizing. The D5100 with its bigger sensor will make shooting shallow DOF simpler and the Olympus E-M1 II will offer you more detail using its extra 4MP. Higher resolution will enable you to crop photographs a little more aggressively. The older D5100 is going to be behind in sensor tech.