Olympus PEN-F vs Pentax 645D

Here, we will be evaluating the Olympus PEN-F versus Pentax 645D, one being a Advanced Mirrorless and the latter is a Pro DSLR by rivals Olympus and Pentax. There is a big difference between the resolutions of the PEN-F (20MP) and 645D (40MP) and the PEN-F (Four Thirds) and 645D (Medium format) have different sensor sizes.

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The PEN-F was launched 5 years later than the 645D and that is quite a big gap as far as tech is concerned. Both of the cameras feature different body design with the Olympus PEN-F being a Rangefinder-style mirrorless camera and the Pentax 645D being a Large SLR camera.

Before delving straight to a thorough comparison, here is a concise highlight of how the PEN-F scores versus the 645D in the way of portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Olympus PEN-F and Pentax 645D. The complete galleries are viewable at Olympus PEN-F Gallery and Pentax 645D Gallery.

If you're going to carry your camera frequently, you will want to consider its weight and proportions. The Olympus PEN-F enjoys physical measurements of 125mm x 72mm x 37mm (4.9" x 2.8" x 1.5") along with a weight of 427 grams (0.94 lbs) and the Pentax 645D has measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs).

Check out the Olympus PEN-F versus Pentax 645D in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary depending on the lens you have at that moment. The following is a front view dimension comparison of the PEN-F against the 645D.

Considering size and weight, the portability score of the PEN-F and 645D is 84 and 50 respectively.

Generally, it's tough to imagine the difference between sensor sizing simply by going over a spec sheet. The photograph here should offer you a better sense of the sensor measurements in the PEN-F and 645D.

As you can see, the two cameras feature different megapixels and different sensor sizing. The PEN-F due to its tinier sensor is going to make achieving bokeh more challenging and the Pentax 645D will deliver extra detail utilizing its extra 20MP. Higher resolution can also let you crop photographs way more aggressively. The more modern PEN-F provides an edge in sensor technology.