Casio EX-Z270 vs Sigma SD1

Following is a detailed review of the Casio EX-Z270 versus Sigma SD1, one is a Ultracompact and the latter is a Advanced DSLR by competitors Casio and Sigma. There is a significant difference between the image resolutions of the EX-Z270 (10MP) and SD1 (15MP) and the EX-Z270 (1/2.5") and SD1 (APS-C) use different sensor measurements.

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The EX-Z270 was announced 20 months earlier than the SD1 which makes the cameras a generation away from each other. Both of these cameras offer different body type with the Casio EX-Z270 being a Ultracompact camera and the Sigma SD1 being a Mid-size SLR camera.

Before diving in to a in depth comparison, below is a concise overview of how the EX-Z270 grades vs the SD1 when considering portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Casio Exilim EX-Z270 and Sigma SD1. The whole galleries are viewable at Casio EX-Z270 Gallery and Sigma SD1 Gallery.

For anybody who is planning to carry around your camera, you'll have to think about its weight and size. The Casio EX-Z270 features physical measurements of 97mm x 55mm x 22mm (3.8" x 2.2" x 0.9") with a weight of 111 grams (0.24 lbs) while the Sigma SD1 has specifications of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") accompanied by a weight of n/a grams (0.00 lbs).

See the Casio EX-Z270 versus Sigma SD1 in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you use at that moment. The following is the front view dimension comparison of the EX-Z270 versus the SD1.

Factoring in size and weight, the portability grade of the EX-Z270 and SD1 is 96 and 77 respectively.

In many cases, its difficult to imagine the contrast between sensor sizes only by looking at technical specs. The image below should provide you a better sense of the sensor measurements in the EX-Z270 and SD1.

As you have seen, both the cameras offer different resolutions and different sensor sizes. The EX-Z270 using its tinier sensor is going to make getting shallow DOF harder and the Sigma SD1 will give more detail with its extra 5 Megapixels. Higher resolution can also help you crop pictures a little more aggressively. The more aged EX-Z270 is going to be disadvantaged with regard to sensor tech.