Casio EX-Z400 vs Sigma DP2 Merrill

Following is a extended review of the Casio EX-Z400 versus Sigma DP2 Merrill, one is a Ultracompact and the latter is a Large Sensor Compact by brands Casio and Sigma. The image resolution of the EX-Z400 (12MP) and the DP2 Merrill (15MP) is pretty comparable but the EX-Z400 (1/2.3") and DP2 Merrill (APS-C) offer totally different sensor measurements.

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The EX-Z400 was introduced 4 years before the DP2 Merrill which is a fairly large gap as far as camera tech is concerned. Both of these cameras feature different body design with the Casio EX-Z400 being a Ultracompact camera and the Sigma DP2 Merrill being a Large Sensor Compact camera.

Before diving into a detailed comparison, here is a simple view of how the EX-Z400 scores versus the DP2 Merrill in terms of portability, imaging, features and an overall score.

Below is a preview of the gallery images for Casio Exilim EX-Z400 and Sigma DP2 Merrill. The whole galleries are provided at Casio EX-Z400 Gallery and Sigma DP2 Merrill Gallery.

For those who are planning to carry around your camera frequently, you will have to consider its weight and volume. The Casio EX-Z400 has got outer measurements of 95mm x 60mm x 23mm (3.7" x 2.4" x 0.9") accompanied by a weight of 130 grams (0.29 lbs) while the Sigma DP2 Merrill has sizing of 122mm x 67mm x 59mm (4.8" x 2.6" x 2.3") and a weight of 330 grams (0.73 lbs).

Compare the Casio EX-Z400 versus Sigma DP2 Merrill in the new Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change depending on the lens you are using at that time. Underneath is a front view dimensions comparison of the EX-Z400 and the DP2 Merrill.

Considering size and weight, the portability score of the EX-Z400 and DP2 Merrill is 95 and 83 respectively.

Oftentimes, it can be hard to visualise the contrast in sensor sizes merely by going through technical specs. The picture here will give you a stronger sense of the sensor measurements in the EX-Z400 and DP2 Merrill.

As you have seen, both the cameras come with different megapixel count and different sensor sizes. The EX-Z400 using its smaller sensor will make shooting shallower DOF trickier and the Sigma DP2 Merrill will produce extra detail using its extra 3 Megapixels. Higher resolution will enable you to crop shots a good deal more aggressively. The more aged EX-Z400 will be disadvantaged in sensor technology.