Pentax 645Z vs Pentax RZ10

Following is a complete analysis of the Pentax 645Z and Pentax RZ10, one is a Pro DSLR and the other is a Small Sensor Compact and both are offered by Pentax. There exists a significant gap among the sensor resolutions of the 645Z (51MP) and RZ10 (14MP) and the 645Z (Medium format) and RZ10 (1/2.3") have different sensor sizing.

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The 645Z was introduced 2 years after the RZ10 which is a fairly sizable gap as far as camera technology is concerned. Both of the cameras have different body design with the Pentax 645Z being a Large SLR camera and the Pentax RZ10 being a Compact camera.

Before we go right into a full comparison, here is a concise overview of how the 645Z matches up against the RZ10 when it comes to portability, imaging, features and an overall score.

Here is a sample of the gallery pictures for Pentax 645Z and Pentax Optio RZ10. The whole galleries are available at Pentax 645Z Gallery and Pentax RZ10 Gallery.

If you're aiming to carry around your camera, you are going to need to consider its weight and volume. The Pentax 645Z enjoys physical measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs) and the Pentax RZ10 has sizing of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") and a weight of 178 grams (0.39 lbs).

Analyze the Pentax 645Z and Pentax RZ10 in the all new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ depending on the lens you have at the time. Below is a front view sizing comparison of the 645Z vs the RZ10.

Taking into consideration dimensions and weight, the portability rating of the 645Z and RZ10 is 49 and 92 respectively.

Quite often, its hard to imagine the difference in sensor sizes only by looking through technical specs. The picture below may offer you a greater sense of the sensor sizing in the 645Z and RZ10.

As you can tell, both cameras have different megapixel count and different sensor sizes. The 645Z with its larger sensor is going to make shooting bokeh simpler and the Pentax 645Z will render greater detail using its extra 37 Megapixels. Greater resolution can also make it easier to crop photos a bit more aggressively. The younger 645Z should have a benefit in sensor innovation.