Casio EX-Z90 vs Samsung GX-20

In this write-up, we will be evaluating the Casio EX-Z90 and Samsung GX-20, one being a Small Sensor Compact and the latter is a Advanced DSLR by rivals Casio and Samsung. The image resolution of the EX-Z90 (12MP) and the GX-20 (15MP) is pretty well matched but the EX-Z90 (1/2.3") and GX-20 (APS-C) come with totally different sensor sizing.

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The EX-Z90 was unveiled 20 months later than the GX-20 which makes the cameras a generation apart from one another. Both of the cameras offer different body type with the Casio EX-Z90 being a Compact camera and the Samsung GX-20 being a Mid-size SLR camera.

Before we go in to a detailed comparison, below is a quick overview of how the EX-Z90 scores vs the GX-20 with regards to portability, imaging, features and an overall grade.

Below is a preview of the gallery images for Casio Exilim EX-Z90 and Samsung GX-20. The full galleries are viewable at Casio EX-Z90 Gallery and Samsung GX-20 Gallery.

For anyone who is looking to lug around your camera often, you're going to have to factor in its weight and measurements. The Casio EX-Z90 comes with external measurements of 90mm x 52mm x 19mm (3.5" x 2.0" x 0.7") with a weight of 121 grams (0.27 lbs) and the Samsung GX-20 has proportions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") along with a weight of 800 grams (1.76 lbs).

Analyze the Casio EX-Z90 and Samsung GX-20 in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilising during that time. Here is the front view over all size comparison of the EX-Z90 against the GX-20.

Taking into account dimensions and weight, the portability grade of the EX-Z90 and GX-20 is 96 and 58 respectively.

Typically, it is very difficult to visualise the difference between sensor measurements purely by reading through specs. The photograph below might give you a more clear sense of the sensor sizing in the EX-Z90 and GX-20.

All in all, each of the cameras enjoy different megapixels and different sensor measurements. The EX-Z90 having a tinier sensor will make shooting shallow DOF trickier and the Samsung GX-20 will give more detail having an extra 3MP. Higher resolution can also let you crop shots far more aggressively. The newer EX-Z90 is going to have an edge with regard to sensor technology.