Olympus TG-310 vs Pentax K-7

In this write-up, we will be looking at the Olympus TG-310 vs Pentax K-7, one being a Waterproof and the latter is a Advanced DSLR by rivals Olympus and Pentax. The sensor resolution of the TG-310 (14MP) and the K-7 (15MP) is pretty well matched but the TG-310 (1/2.3") and K-7 (APS-C) come with totally different sensor sizes.

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The TG-310 was introduced 16 months later than the K-7 which makes the cameras a generation apart from one another. Both of these cameras offer different body type with the Olympus TG-310 being a Compact camera and the Pentax K-7 being a Mid-size SLR camera.

Before going straight into a thorough comparison, below is a simple view of how the TG-310 matches up versus the K-7 for portability, imaging, features and an overall grade.

Below is a preview of the gallery images for Olympus TG-310 and Pentax K-7. The whole galleries are viewable at Olympus TG-310 Gallery and Pentax K-7 Gallery.

For anyone who is planning to lug around your camera regularly, you will have to think about its weight and proportions. The Olympus TG-310 enjoys outside measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") and a weight of 155 grams (0.34 lbs) while 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 TG-310 vs Pentax K-7 in the new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are using at the time. Following is the front view measurements comparison of the TG-310 compared to the K-7.

Taking into consideration dimensions and weight, the portability grade of the TG-310 and K-7 is 94 and 60 respectively.

Normally, it is very difficult to visualise the contrast between sensor measurements purely by checking specs. The graphic underneath should provide you a greater sense of the sensor measurements in the TG-310 and K-7.

All in all, both the cameras offer different megapixels and different sensor measurements. The TG-310 using its tinier sensor will make getting shallower depth of field trickier and the Pentax K-7 will give you more detail using its extra 1MP. Higher resolution will enable you to crop pictures a little more aggressively. The more recent TG-310 is going to have an edge when it comes to sensor tech.