Olympus SP-100 vs Pentax 645D

The following is a in-depth analysis of the Olympus SP-100 and Pentax 645D, former is a Small Sensor Superzoom while the latter is a Pro DSLR by companies Olympus and Pentax. There is a sizable difference between the sensor resolutions of the SP-100 (16MP) and 645D (40MP) and the SP-100 (1/2.3") and 645D (Medium format) offer totally different sensor sizes.

Photography Glossary

The SP-100 was manufactured 3 years after the 645D which is quite a significant difference as far as tech is concerned. Both the cameras have different body design with the Olympus SP-100 being a SLR-like (bridge) camera and the Pentax 645D being a Large SLR camera.

Before we go right into a complete comparison, here is a quick summary of how the SP-100 matches up versus the 645D in regards to portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Olympus Stylus SP-100 & Pentax 645D. The entire galleries are available at Olympus SP-100 Gallery & Pentax 645D Gallery.

For anybody who is looking to travel with your camera, you should factor its weight and measurements. The Olympus SP-100 comes with external measurements of 122mm x 91mm x 133mm (4.8" x 3.6" x 5.2") and a weight of 594 grams (1.31 lbs) while the Pentax 645D has proportions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs).

Contrast the Olympus SP-100 and Pentax 645D in our newest Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will vary based on the lens you are using during that time. The following is a front view measurement comparison of the SP-100 vs the 645D.

Using size and weight, the portability rating of the SP-100 and 645D is 63 and 50 respectively.

Oftentimes, it is very hard to envision the gap between sensor dimensions just by reading a spec sheet. The pic here should offer you a clearer sense of the sensor measurements in the SP-100 and 645D.

As you can see, the 2 cameras have different resolutions and different sensor dimensions. The SP-100 because of its tinier sensor will make shooting bokeh more difficult and the Pentax 645D will deliver extra detail due to its extra 24 Megapixels. Higher resolution will enable you to crop shots a bit more aggressively. The fresher SP-100 is going to have a benefit in sensor technology.