Pentax 645Z vs Pentax I-10

Following is a extensive review of the Pentax 645Z and Pentax I-10, one is a Pro DSLR and the other is a Small Sensor Compact and they are both built by Pentax. There is a crucial difference among the resolutions of the 645Z (51MP) and I-10 (12MP) and the 645Z (Medium format) and I-10 (1/2.3") possess different sensor size.

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The 645Z was announced 4 years after the I-10 which is a fairly serious gap as far as camera tech is concerned. The two cameras offer different body type with the Pentax 645Z being a Large SLR camera and the Pentax I-10 being a Compact camera.

Before diving in to a comprehensive comparison, below is a simple summation of how the 645Z scores vs the I-10 in regards to portability, imaging, features and an overall score.

The following is a sample of the gallery pics for Pentax 645Z and Pentax Optio I-10. The whole galleries are provided at Pentax 645Z Gallery and Pentax I-10 Gallery.

In case you're aiming to carry around your camera regularly, you're going to have to factor its weight and measurements. The Pentax 645Z has physical dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs) whilst the Pentax I-10 has proportions of 101mm x 65mm x 28mm (4.0" x 2.6" x 1.1") having a weight of 153 grams (0.34 lbs).

Take a look at the Pentax 645Z and Pentax I-10 in the latest Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change based on the lens you choose at that time. Underneath is the front view proportions comparison of the 645Z versus the I-10.

Factoring in size and weight, the portability score of the 645Z and I-10 is 49 and 93 respectively.

Generally, it is very tough to imagine the contrast in sensor sizes purely by researching a spec sheet. The image underneath should give you a greater sense of the sensor dimensions in the 645Z and I-10.

Clearly, each of these cameras offer different megapixel count and different sensor sizes. The 645Z having a larger sensor is going to make shooting bokeh simpler and the Pentax 645Z will render more detail with its extra 39MP. Greater resolution will also enable you to crop photos a little more aggressively. The younger 645Z should have an advantage when it comes to sensor innovation.