Panasonic G100 vs Pentax K-3

Below is a extended overview of the Panasonic G100 versus Pentax K-3, one being a Entry-Level Mirrorless and the latter is a Advanced DSLR by manufacturers Panasonic and Pentax. The sensor resolution of the G100 (20MP) and the K-3 (24MP) is relatively comparable but the G100 (Four Thirds) and K-3 (APS-C) have totally different sensor measurements.

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The G100 was manufactured 6 years later than the K-3 and that is a fairly sizable gap as far as camera tech is concerned. Both cameras feature different body design with the Panasonic G100 being a SLR-style mirrorless camera and the Pentax K-3 being a Mid-size SLR camera.

Before getting straight to a detailed comparison, here is a short overview of how the G100 matches up vs the K-3 for portability, imaging, features and an overall grade.

Following is a preview of the gallery photos for Panasonic Lumix DC-G100 and Pentax K-3. The entire galleries are provided at Panasonic G100 Gallery and Pentax K-3 Gallery.

If you're planning to lug around your camera often, you have to take into account its weight and dimensions. The Panasonic G100 comes with outside measurements of 116mm x 83mm x 54mm (4.6" x 3.3" x 2.1") along with a weight of 352 grams (0.78 lbs) and the Pentax K-3 has dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs).

Look at the Panasonic G100 versus Pentax K-3 in the all new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are using at the time. The following is a front view overall size comparison of the G100 vs the K-3.

Taking into account size and weight, the portability rating of the G100 and K-3 is 81 and 59 respectively.

In many cases, it is very hard to visualise the difference in sensor measurements purely by going through technical specs. The photograph underneath should offer you a greater sense of the sensor sizing in the G100 and K-3.

As you can tell, the 2 cameras feature different megapixel count and different sensor measurements. The G100 featuring a smaller sensor will make getting shallow depth of field more challenging and the Pentax K-3 will show greater detail due to its extra 4 Megapixels. Higher resolution will also make it easier to crop shots way more aggressively. The newer G100 will have an edge with regard to sensor technology.