Olympus TG-320 vs Pentax K-7

On this page, we will be analyzing the Olympus TG-320 and Pentax K-7, one is a Waterproof and the latter is a Advanced DSLR by companies Olympus and Pentax. The image resolution of the TG-320 (14MP) and the K-7 (15MP) is relatively close but the TG-320 (1/2.3") and K-7 (APS-C) posses different sensor sizes.

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The TG-320 was manufactured 2 years after the K-7 which is a fairly significant gap as far as camera technology is concerned. Both cameras have different body design with the Olympus TG-320 being a Compact camera and the Pentax K-7 being a Mid-size SLR camera.

Before delving straight to a in-depth comparison, here is a simple summary of how the TG-320 grades against the K-7 with regard to portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Olympus TG-320 and Pentax K-7. The entire galleries are available at Olympus TG-320 Gallery and Pentax K-7 Gallery.

For those who are going to travel with your camera, you will have to factor in its weight and volume. The Olympus TG-320 has got physical measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") along with a weight of 155 grams (0.34 lbs) and the Pentax K-7 has sizing of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 750 grams (1.65 lbs).

Contrast the Olympus TG-320 and Pentax K-7 in the latest Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are employing at the time. Below is a front view scale comparison of the TG-320 versus the K-7.

Taking into consideration dimensions and weight, the portability score of the TG-320 and K-7 is 94 and 60 respectively.

Normally, its tough to imagine the difference in sensor dimensions only by looking through technical specs. The pic below should provide you a much better sense of the sensor sizing in the TG-320 and K-7.

As you can tell, both the cameras provide different megapixel count and different sensor dimensions. The TG-320 featuring a smaller sensor is going to make shooting shallower DOF more difficult and the Pentax K-7 will render more detail due to its extra 1MP. Higher resolution can also enable you to crop shots more aggressively. The newer TG-320 should have an edge when it comes to sensor innovation.