Olympus E-300 vs Pentax 645Z

Below is a detailed analysis of the Olympus E-300 versus Pentax 645Z, former being a Advanced DSLR while the latter is a Pro DSLR by companies Olympus and Pentax. There is a sizable difference among the resolutions of the E-300 (8MP) and 645Z (51MP) and the E-300 (Four Thirds) and 645Z (Medium format) come with different sensor sizing.

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The E-300 was announced 10 years earlier than the 645Z and that is a fairly significant difference as far as camera tech is concerned. Both cameras come with different body type with the Olympus E-300 being a Mid-size SLR camera and the Pentax 645Z being a Large SLR camera.

Before diving in to a comprehensive comparison, below is a brief view of how the E-300 scores versus the 645Z in terms of portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Olympus E-300 & Pentax 645Z. The whole galleries are available at Olympus E-300 Gallery & Pentax 645Z Gallery.

If you're going to lug around your camera regularly, you will have to take into account its weight and measurements. The Olympus E-300 comes with physical measurements of 147mm x 85mm x 64mm (5.8" x 3.3" x 2.5") accompanied by a weight of 624 grams (1.38 lbs) and the Pentax 645Z has proportions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs).

Analyze the Olympus E-300 versus Pentax 645Z in our completely new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change dependant on the lens you are using at that time. The following is the front view physical size comparison of the E-300 and the 645Z.

Using size and weight, the portability grade of the E-300 and 645Z is 67 and 49 respectively.

Usually, its tough to imagine the gap in sensor measurements only by researching specifications. The photograph below should offer you a greater sense of the sensor sizing in the E-300 and 645Z.

To sum up, both of the cameras posses different megapixel count and different sensor measurements. The E-300 having a smaller sensor is going to make achieving shallow DOF more difficult and the Pentax 645Z will render greater detail with its extra 43 Megapixels. Higher resolution can also let you crop pictures somewhat more aggressively. The older E-300 will be disadvantaged in sensor technology.