Panasonic GH5 vs Pentax RZ18

The following is a detailed review of the Panasonic GH5 and Pentax RZ18, former is a Pro Mirrorless while the other is a Small Sensor Superzoom by manufacturers Panasonic and Pentax. There is a large difference between the resolutions of the GH5 (20MP) and RZ18 (16MP) and the GH5 (Four Thirds) and RZ18 (1/2.3") offer different sensor sizes.

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The GH5 was revealed 5 years after the RZ18 which is quite a serious difference as far as tech is concerned. Both of the cameras have different body design with the Panasonic GH5 being a SLR-style mirrorless camera and the Pentax RZ18 being a Compact camera.

Before getting straight to a in depth comparison, here is a quick overview of how the GH5 grades vs the RZ18 with respect to portability, imaging, features and an overall mark.

Following is a sample of the gallery pictures for Panasonic Lumix DMC-GH5 & Pentax Optio RZ18. The full galleries are viewable at Panasonic GH5 Gallery & Pentax RZ18 Gallery.

When you are going to travel with your camera, you're going to have to factor its weight and dimensions. The Panasonic GH5 has got external dimensions of 139mm x 98mm x 87mm (5.5" x 3.9" x 3.4") having a weight of 725 grams (1.60 lbs) whilst the Pentax RZ18 has dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") and a weight of 178 grams (0.39 lbs).

Check out the Panasonic GH5 and Pentax RZ18 in our completely new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will vary dependant on the lens you select during that time. Here is a front view over all size comparison of the GH5 vs the RZ18.

Taking into account size and weight, the portability grade of the GH5 and RZ18 is 59 and 92 respectively.

Generally, it's difficult to picture the difference between sensor dimensions just by reading technical specs. The image here will help offer you a much better sense of the sensor sizes in the GH5 and RZ18.

As you can tell, the two cameras provide different megapixels and different sensor dimensions. The GH5 with its larger sensor is going to make getting shallower DOF less difficult and the Panasonic GH5 will offer you extra detail because of its extra 4 Megapixels. Greater resolution can also make it easier to crop images more aggressively. The newer GH5 provides an advantage with regard to sensor tech.