Panasonic GH3 vs Pentax K-70

Here is a thorough comparison of the Panasonic GH3 versus Pentax K-70, former being a Advanced Mirrorless while the other is a Entry-Level DSLR by rivals Panasonic and Pentax. There is a considerable difference between the image resolutions of the GH3 (16MP) and K-70 (24MP) and the GH3 (Four Thirds) and K-70 (APS-C) use totally different sensor measurements.

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The GH3 was launched 4 years before the K-70 and that is quite a large difference as far as tech is concerned. Both the cameras offer different body type with the Panasonic GH3 being a SLR-style mirrorless camera and the Pentax K-70 being a Compact SLR camera.

Before diving in to a detailed comparison, below is a brief summary of how the GH3 grades against the K-70 when considering portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Panasonic Lumix DMC-GH3 & Pentax K-70. The complete galleries are viewable at Panasonic GH3 Gallery & Pentax K-70 Gallery.

If you're going to carry your camera frequently, you should consider its weight and measurements. The Panasonic GH3 features exterior measurements of 133mm x 93mm x 82mm (5.2" x 3.7" x 3.2") having a weight of 550 grams (1.21 lbs) while the Pentax K-70 has proportions of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") along with a weight of 688 grams (1.52 lbs).

Contrast the Panasonic GH3 versus Pentax K-70 in our completely new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ dependant on the lens you use at the time. The following is the front view measurement comparison of the GH3 and the K-70.

Considering size and weight, the portability grade of the GH3 and K-70 is 66 and 62 respectively.

In many cases, it can be difficult to see the gap between sensor sizing simply by reading through a spec sheet. The graphic below might provide you a greater sense of the sensor measurements in the GH3 and K-70.

As you can see, the two cameras offer different megapixel count and different sensor sizing. The GH3 featuring a tinier sensor will make achieving bokeh harder and the Pentax K-70 will resolve more detail utilizing its extra 8 Megapixels. Greater resolution will let you crop photos a little more aggressively. The older GH3 is going to be behind when it comes to sensor innovation.