Olympus SP-590 UZ vs Pentax 645D

In this article, we are looking at the Olympus SP-590 UZ versus Pentax 645D, former is a Small Sensor Superzoom while the other is a Pro DSLR by companies Olympus and Pentax. There is a substantial difference among the image resolutions of the SP-590 UZ (12MP) and 645D (40MP) and the SP-590 UZ (1/2.3") and 645D (Medium format) possess different sensor sizes.

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The SP-590 UZ was released 14 months prior to the 645D making the cameras a generation away from each other. The two cameras offer different body type with the Olympus SP-590 UZ being a SLR-like (bridge) camera and the Pentax 645D being a Large SLR camera.

Before diving straight into a in depth comparison, below is a simple view of how the SP-590 UZ matches up against the 645D with respect to portability, imaging, features and an overall score.

Below is a sample of the gallery pictures for Olympus SP-590 UZ & Pentax 645D. The complete galleries are provided at Olympus SP-590 UZ Gallery & Pentax 645D Gallery.

For anybody who is planning to carry around your camera frequently, you will have to consider its weight and dimensions. The Olympus SP-590 UZ comes with external dimensions of 116mm x 84mm x 81mm (4.6" x 3.3" x 3.2") having a weight of 413 grams (0.91 lbs) whilst the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs).

Examine the Olympus SP-590 UZ versus Pentax 645D in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change based on the lens you are utilizing at that time. Below is the front view proportions comparison of the SP-590 UZ versus the 645D.

Taking into consideration size and weight, the portability score of the SP-590 UZ and 645D is 72 and 50 respectively.

Often, it is difficult to picture the difference in sensor sizes only by researching technical specs. The picture below will offer you a better sense of the sensor dimensions in the SP-590 UZ and 645D.

As you have seen, both the cameras enjoy different megapixels and different sensor sizes. The SP-590 UZ due to its smaller sensor is going to make achieving shallower DOF more difficult and the Pentax 645D will provide you with extra detail as a result of its extra 28 Megapixels. Greater resolution will also allow you to crop pics far more aggressively. The more aged SP-590 UZ will be behind with regard to sensor tech.