Olympus E-620 vs Pentax 645Z

Lets look closer at the Olympus E-620 and Pentax 645Z, one is a Entry-Level DSLR and the other is a Pro DSLR by companies Olympus and Pentax. There exists a crucial gap among the image resolutions of the E-620 (12MP) and 645Z (51MP) and the E-620 (Four Thirds) and 645Z (Medium format) come with different sensor measurements.

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The E-620 was revealed 5 years before the 645Z which is a fairly serious gap as far as camera technology is concerned. Both cameras come with different body type with the Olympus E-620 being a Compact SLR camera and the Pentax 645Z being a Large SLR camera.

Before we go straight into a thorough comparison, below is a quick view of how the E-620 matches up vs the 645Z with respect to portability, imaging, features and an overall score.

Here is a sample of the gallery pictures for Olympus E-620 and Pentax 645Z. The full galleries are available at Olympus E-620 Gallery and Pentax 645Z Gallery.

For anyone who is intending to carry around your camera frequently, you should consider its weight and dimensions. The Olympus E-620 has got exterior dimensions of 130mm x 94mm x 60mm (5.1" x 3.7" x 2.4") and a weight of 500 grams (1.10 lbs) while the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs).

Check out the Olympus E-620 and Pentax 645Z in the all new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are using during that time. Underneath is the front view dimensions comparison of the E-620 vs the 645Z.

Considering dimensions and weight, the portability score of the E-620 and 645Z is 71 and 49 respectively.

Typically, it's difficult to picture the gap in sensor sizes just by seeing specifications. The pic underneath should offer you a much better sense of the sensor sizes in the E-620 and 645Z.

Plainly, both of these cameras have got different megapixels and different sensor sizes. The E-620 using its smaller sensor is going to make getting bokeh tougher and the Pentax 645Z will show more detail because of its extra 39 Megapixels. Greater resolution will make it easier to crop photos much more aggressively. The more aged E-620 will be disadvantaged when it comes to sensor technology.