Olympus E-330 vs Pentax K-7

Let's look closer at the Olympus E-330 and Pentax K-7, both Advanced DSLR cameras by brands Olympus and Pentax. There exists a sizeable gap among the resolutions of the E-330 (7MP) and K-7 (15MP) and the E-330 (Four Thirds) and K-7 (APS-C) offer totally different sensor sizes.

Photography Glossary

The E-330 was unveiled 4 years earlier than the K-7 which is a fairly large gap as far as camera technology is concerned. Both cameras feature the same body design (Mid-size SLR).

Before delving straight to a comprehensive comparison, here is a simple overview of how the E-330 scores versus the K-7 in regards to portability, imaging, features and an overall mark.

This is a preview of the gallery photos for Olympus E-330 and Pentax K-7. The full galleries are available at Olympus E-330 Gallery and Pentax K-7 Gallery.

For anyone who is intending to travel with your camera frequently, you'll have to factor in its weight and proportions. The Olympus E-330 enjoys outer measurements of 140mm x 87mm x 72mm (5.5" x 3.4" x 2.8") with a weight of 616 grams (1.36 lbs) whilst the Pentax K-7 has measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 750 grams (1.65 lbs).

Take a look at the Olympus E-330 and Pentax K-7 in the all new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are employing at that time. Below is a front view over all size comparison of the E-330 against the K-7.

Considering dimensions and weight, the portability score of the E-330 and K-7 is 65 and 60 respectively.

More often than not, it's hard to envision the difference in sensor dimensions purely by researching technical specs. The image below will help offer you a more clear sense of the sensor sizing in the E-330 and K-7.

As you have seen, the two cameras come with different resolutions and different sensor dimensions. The E-330 with its smaller sensor will make shooting shallower depth of field tougher and the Pentax K-7 will render greater detail having an extra 8MP. Higher resolution will allow you to crop shots a good deal more aggressively. The more aged E-330 will be behind with regard to sensor innovation.