Olympus E-M1 II vs Pentax 645D

The following is a complete assessment of the Olympus E-M1 II and Pentax 645D, one is a Pro Mirrorless and the latter is a Pro DSLR by companies Olympus and Pentax. There exists a huge gap between the resolutions of the E-M1 II (20MP) and 645D (40MP) and the E-M1 II (Four Thirds) and 645D (Medium format) enjoy different sensor dimensions.

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The E-M1 II was launched 6 years after the 645D which is quite a significant gap as far as technology is concerned. Each of the cameras come with different body type with the Olympus E-M1 II being a SLR-style mirrorless camera and the Pentax 645D being a Large SLR camera.

Before going in to a comprehensive comparison, below is a simple synopsis of how the E-M1 II grades versus the 645D for portability, imaging, features and an overall mark.

This is a preview of the gallery images for Olympus OM-D E-M1 Mark II and Pentax 645D. The complete galleries are available at Olympus E-M1 II Gallery and Pentax 645D Gallery.

When you are planning to travel with your camera, you should factor in its weight and size. The Olympus E-M1 II features exterior measurements of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") accompanied by a weight of 574 grams (1.27 lbs) whilst the Pentax 645D has specifications of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs).

Check the Olympus E-M1 II and Pentax 645D in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising at that moment. Here is the front view measurement comparison of the E-M1 II versus the 645D.

Looking at dimensions and weight, the portability grade of the E-M1 II and 645D is 68 and 50 respectively.

Sometimes, it is very difficult to picture the gap between sensor dimensions purely by going over specifications. The picture underneath should offer you a much better sense of the sensor sizing in the E-M1 II and 645D.

Plainly, both of the cameras posses different resolutions and different sensor dimensions. The E-M1 II due to its tinier sensor is going to make shooting bokeh tougher and the Pentax 645D will deliver extra detail utilizing its extra 20MP. Higher resolution will also enable you to crop pictures somewhat more aggressively. The younger E-M1 II should have an edge with regard to sensor technology.