Olympus E-PM1 vs Pentax K-7

Lets take a deeper look at the Olympus E-PM1 vs Pentax K-7, one being a Entry-Level Mirrorless and the other is a Advanced DSLR by rivals Olympus and Pentax. The sensor resolution of the E-PM1 (12MP) and the K-7 (15MP) is fairly comparable but the E-PM1 (Four Thirds) and K-7 (APS-C) have totally different sensor sizing.

Photography Glossary

The E-PM1 was brought out 2 years later than the K-7 and that is a fairly large gap as far as camera technology is concerned. The two cameras have different body design with the Olympus E-PM1 being a Rangefinder-style mirrorless camera and the Pentax K-7 being a Mid-size SLR camera.

Before we go straight to a full comparison, here is a brief overview of how the E-PM1 matches up against the K-7 in relation to portability, imaging, features and an overall grade.

This is a sample of the gallery pictures for Olympus PEN E-PM1 and Pentax K-7. The entire galleries are available at Olympus E-PM1 Gallery and Pentax K-7 Gallery.

When you are aiming to lug around your camera frequently, you'll have to factor in its weight and volume. The Olympus E-PM1 has got exterior dimensions of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") having a weight of 265 grams (0.58 lbs) whilst the Pentax K-7 has sizing of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") accompanied by a weight of 750 grams (1.65 lbs).

Take a look at the Olympus E-PM1 vs Pentax K-7 in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilising during that time. The following is a front view size comparison of the E-PM1 versus the K-7.

Looking at dimensions and weight, the portability rating of the E-PM1 and K-7 is 89 and 60 respectively.

Typically, it is difficult to envision the difference in sensor measurements only by going through specifications. The visual below will help offer you a much better sense of the sensor sizes in the E-PM1 and K-7.

To sum up, each of the cameras have different megapixels and different sensor measurements. The E-PM1 because of its smaller sensor will make shooting shallower DOF more difficult and the Pentax K-7 will produce greater detail having its extra 3 Megapixels. Greater resolution will also help you crop photos a bit more aggressively. The younger E-PM1 will have an advantage in sensor technology.