Olympus TG-320 vs Sigma DP3 Merrill

The following is a complete assessment of the Olympus TG-320 and Sigma DP3 Merrill, one is a Waterproof and the other is a Large Sensor Compact by brands Olympus and Sigma. The image resolution of the TG-320 (14MP) and the DP3 Merrill (15MP) is fairly well matched but the TG-320 (1/2.3") and DP3 Merrill (APS-C) enjoy different sensor size.

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The TG-320 was brought out 12 months before the DP3 Merrill which means that they are of a similar generation. Both cameras come with different body type with the Olympus TG-320 being a Compact camera and the Sigma DP3 Merrill being a Large Sensor Compact camera.

Before getting straight into a step-by-step comparison, below is a simple highlight of how the TG-320 scores vs the DP3 Merrill when it comes to portability, imaging, features and an overall mark.

Here is a sample of the gallery pictures for Olympus TG-320 and Sigma DP3 Merrill. The entire galleries are provided at Olympus TG-320 Gallery and Sigma DP3 Merrill Gallery.

When you are intending to travel with your camera often, you will have to think about its weight and measurements. The Olympus TG-320 enjoys physical measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") accompanied by a weight of 155 grams (0.34 lbs) whilst the Sigma DP3 Merrill has proportions of 122mm x 67mm x 59mm (4.8" x 2.6" x 2.3") and a weight of 330 grams (0.73 lbs).

Look at the Olympus TG-320 and Sigma DP3 Merrill in the all new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are employing at that moment. The following is the front view physical size comparison of the TG-320 against the DP3 Merrill.

Looking at dimensions and weight, the portability score of the TG-320 and DP3 Merrill is 94 and 83 respectively.

More often than not, it is difficult to visualize the gap between sensor dimensions simply by checking a spec sheet. The picture underneath will help provide you a better sense of the sensor sizing in the TG-320 and DP3 Merrill.

As you can see, both the cameras posses different megapixels and different sensor dimensions. The TG-320 due to its tinier sensor is going to make achieving shallow DOF trickier and the Sigma DP3 Merrill will give you greater detail having its extra 1 Megapixels. Greater resolution can also let you crop images somewhat more aggressively. The more aged TG-320 is going to be disadvantaged in sensor technology.