Panasonic G3 vs Pentax K-3

Below is a extensive overview of the Panasonic G3 vs Pentax K-3, former being a Entry-Level Mirrorless while the latter is a Advanced DSLR by manufacturers Panasonic and Pentax. There exists a large gap among the image resolutions of the G3 (16MP) and K-3 (24MP) and the G3 (Four Thirds) and K-3 (APS-C) posses different sensor sizing.

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The G3 was launched 3 years prior to the K-3 and that is a fairly serious difference as far as camera technology is concerned. Both cameras have different body design with the Panasonic G3 being a SLR-style mirrorless camera and the Pentax K-3 being a Mid-size SLR camera.

Before diving into a detailed comparison, here is a short view of how the G3 matches up against the K-3 in the way of portability, imaging, features and an overall grade.

Below is a preview of the gallery photos for Panasonic Lumix DMC-G3 & Pentax K-3. The complete galleries are available at Panasonic G3 Gallery & Pentax K-3 Gallery.

For anybody who is aiming to lug around your camera frequently, you will want to factor in its weight and volume. The Panasonic G3 features outside measurements of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") accompanied by a weight of 336 grams (0.74 lbs) whilst the Pentax K-3 has sizing of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") having a weight of 800 grams (1.76 lbs).

Check the Panasonic G3 vs Pentax K-3 in our brand new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change based on the lens you choose at the time. Here is a front view scale comparison of the G3 against the K-3.

Looking at dimensions and weight, the portability rating of the G3 and K-3 is 83 and 59 respectively.

Typically, it can be hard to picture the contrast in sensor measurements merely by going through specifications. The graphic below should give you a better sense of the sensor sizing in the G3 and K-3.

To sum up, both of these cameras have different megapixels and different sensor measurements. The G3 because of its smaller sensor is going to make shooting shallower depth of field trickier and the Pentax K-3 will show more detail utilizing its extra 8MP. Higher resolution can also make it easier to crop shots a bit more aggressively. The older G3 will be disadvantaged when it comes to sensor technology.