Olympus FE-25 vs Pentax 645Z

Here is a extended comparison of the Olympus FE-25 and Pentax 645Z, one being a Ultracompact and the latter is a Pro DSLR by brands Olympus and Pentax. There is a significant difference between the image resolutions of the FE-25 (10MP) and 645Z (51MP) and the FE-25 (1/2.3") and 645Z (Medium format) provide totally different sensor dimensions.

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The FE-25 was launched 6 years earlier than the 645Z and that is quite a sizable gap as far as tech is concerned. The two cameras feature different body design with the Olympus FE-25 being a Ultracompact camera and the Pentax 645Z being a Large SLR camera.

Before getting into a detailed comparison, here is a brief introduction of how the FE-25 scores versus the 645Z in the way of portability, imaging, features and an overall rating.

Following is a preview of the gallery images for Olympus FE-25 and Pentax 645Z. The complete galleries are provided at Olympus FE-25 Gallery and Pentax 645Z Gallery.

When you are looking to carry your camera regularly, you will want to think about its weight and volume. The Olympus FE-25 has external dimensions of 93mm x 62mm x 24mm (3.7" x 2.4" x 0.9") accompanied by a weight of n/a grams (0.00 lbs) and the Pentax 645Z has sizing of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs).

See the Olympus FE-25 and Pentax 645Z in the latest Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you have at that moment. Below is a front view dimensions comparison of the FE-25 vs the 645Z.

Using size and weight, the portability rating of the FE-25 and 645Z is 98 and 49 respectively.

Often, it is difficult to visualise the difference between sensor sizing only by reading through specs. The photograph below may provide you a more clear sense of the sensor sizes in the FE-25 and 645Z.

All in all, the 2 cameras come with different resolutions and different sensor sizing. The FE-25 featuring a tinier sensor will make getting shallow DOF trickier and the Pentax 645Z will resolve extra detail utilizing its extra 41MP. Higher resolution will also make it easier to crop shots a good deal more aggressively. The older FE-25 is going to be disadvantaged when it comes to sensor tech.