Olympus E-5 vs Pentax 645Z

Lets look a bit more closely at the Olympus E-5 and Pentax 645Z, one is a Advanced DSLR and the latter is a Pro DSLR by rivals Olympus and Pentax. There exists a sizeable gap between the resolutions of the E-5 (12MP) and 645Z (51MP) and the E-5 (Four Thirds) and 645Z (Medium format) feature different sensor dimensions.

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The E-5 was manufactured 4 years prior to the 645Z which is quite a large gap as far as technology is concerned. The two cameras come with different body type with the Olympus E-5 being a Mid-size SLR camera and the Pentax 645Z being a Large SLR camera.

Before going through a thorough comparison, below is a concise highlight of how the E-5 scores against the 645Z for portability, imaging, features and an overall mark.

The following is a preview of the gallery images for Olympus E-5 and Pentax 645Z. The entire galleries are provided at Olympus E-5 Gallery and Pentax 645Z Gallery.

In case you're going to travel with your camera, you should consider its weight and dimensions. The Olympus E-5 enjoys external dimensions of 143mm x 117mm x 75mm (5.6" x 4.6" x 3.0") accompanied by a weight of 800 grams (1.76 lbs) while the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs).

Check out the Olympus E-5 and Pentax 645Z in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you use at that moment. Below is the front view overall size comparison of the E-5 vs the 645Z.

Taking into account dimensions and weight, the portability grade of the E-5 and 645Z is 58 and 49 respectively.

Normally, it's hard to visualize the difference between sensor dimensions purely by reading specs. The pic underneath will offer you a much better sense of the sensor dimensions in the E-5 and 645Z.

As you can plainly see, the 2 cameras have got different megapixel count and different sensor dimensions. The E-5 because of its tinier sensor is going to make getting bokeh more difficult and the Pentax 645Z will offer more detail due to its extra 39 Megapixels. Higher resolution will also help you crop photographs much more aggressively. The more aged E-5 is going to be disadvantaged in sensor innovation.