Casio EX-Z550 vs Sigma SD15

In this article, we are evaluating the Casio EX-Z550 versus Sigma SD15, former being a Ultracompact while the other is a Advanced DSLR by brands Casio and Sigma. There is a noticeable difference among the sensor resolutions of the EX-Z550 (14MP) and SD15 (5MP) and the EX-Z550 (1/2.3") and SD15 (APS-C) enjoy totally different sensor measurements.

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The EX-Z550 was brought out around the same time to the SD15 so they are both of a similar age. Both of these cameras offer different body type with the Casio EX-Z550 being a Ultracompact camera and the Sigma SD15 being a Mid-size SLR camera.

Before getting straight into a more detailed comparison, below is a quick overview of how the EX-Z550 matches up against the SD15 when considering portability, imaging, features and an overall grade.

Here is a sample of the gallery pictures for Casio Exilim EX-Z550 & Sigma SD15. The entire galleries are provided at Casio EX-Z550 Gallery & Sigma SD15 Gallery.

For those who are aiming to lug around your camera, you are going to need to factor in its weight and dimensions. The Casio EX-Z550 comes with external measurements of 99mm x 53mm x 20mm (3.9" x 2.1" x 0.8") along with a weight of 143 grams (0.32 lbs) whilst the Sigma SD15 has dimensions of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") and a weight of 750 grams (1.65 lbs).

Take a look at the Casio EX-Z550 versus Sigma SD15 in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ based on the lens you are working with at the time. Here is the front view dimension comparison of the EX-Z550 compared to the SD15.

Using size and weight, the portability grade of the EX-Z550 and SD15 is 95 and 59 respectively.

Often, it's difficult to visualise the difference in sensor measurements purely by looking through specifications. The photograph here may give you a more clear sense of the sensor sizing in the EX-Z550 and SD15.

To sum up, the two cameras enjoy different megapixels and different sensor measurements. The EX-Z550 because of its smaller sensor will make achieving shallow depth of field tougher and the Casio EX-Z550 will provide you with greater detail having its extra 9MP. Greater resolution can also allow you to crop pics far more aggressively.