Olympus E-3 vs Pentax 645Z

Its time to examine more closely at the Olympus E-3 versus Pentax 645Z, former being a Advanced DSLR while the latter is a Pro DSLR by competitors Olympus and Pentax. There exists a sizable gap between the image resolutions of the E-3 (10MP) and 645Z (51MP) and the E-3 (Four Thirds) and 645Z (Medium format) possess totally different sensor size.

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The E-3 was unveiled 7 years earlier than the 645Z and that is quite a significant difference as far as technology is concerned. The two cameras offer different body type with the Olympus E-3 being a Mid-size SLR camera and the Pentax 645Z being a Large SLR camera.

Before we go in to a thorough comparison, below is a concise view of how the E-3 matches up against the 645Z for portability, imaging, features and an overall rating.

Below is a preview of the gallery images for Olympus E-3 & Pentax 645Z. The full galleries are viewable at Olympus E-3 Gallery & Pentax 645Z Gallery.

For anybody who is looking to carry your camera often, you are going to need to factor in its weight and volume. The Olympus E-3 provides exterior dimensions of 142mm x 116mm x 75mm (5.6" x 4.6" x 3.0") and a weight of 890 grams (1.96 lbs) whilst the Pentax 645Z has sizing 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-3 versus Pentax 645Z in our brand new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will differ depending on the lens you are utilizing at that moment. Following is the front view sizing comparison of the E-3 and the 645Z.

Taking into account dimensions and weight, the portability grade of the E-3 and 645Z is 56 and 49 respectively.

Typically, its difficult to visualise the gap between sensor sizing just by reading through technical specs. The visual here might offer you a better sense of the sensor dimensions in the E-3 and 645Z.

As you have seen, both cameras enjoy different megapixels and different sensor sizing. The E-3 with its tinier sensor will make shooting shallow depth of field more challenging and the Pentax 645Z will give you extra detail having an extra 41 Megapixels. Higher resolution will also make it easier to crop photographs far more aggressively. The older E-3 is going to be behind in sensor tech.