Pentax 645D vs Pentax WG-1

The following is a detailed assessment of the Pentax 645D and Pentax WG-1, former is a Pro DSLR while the latter is a Waterproof and they are both built by Pentax. There is a sizable difference between the resolutions of the 645D (40MP) and WG-1 (14MP) and the 645D (Medium format) and WG-1 (1/2.3") provide different sensor sizing.

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The 645D was announced 11 months before the WG-1 so they are of a similar age. Both of these cameras have different body design with the Pentax 645D being a Large SLR camera and the Pentax WG-1 being a Compact camera.

Before getting straight to a step-by-step comparison, here is a quick introduction of how the 645D scores versus the WG-1 when it comes to portability, imaging, features and an overall mark.

This is a preview of the gallery images for Pentax 645D & Pentax Optio WG-1. The whole galleries are provided at Pentax 645D Gallery & Pentax WG-1 Gallery.

When you are intending to travel with your camera regularly, you are going to need to factor in its weight and proportions. The Pentax 645D comes with outer measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) while the Pentax WG-1 has measurements of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") accompanied by a weight of 157 grams (0.35 lbs).

Examine the Pentax 645D and Pentax WG-1 in our newest Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will change based on the lens you use at the time. The following is a front view size comparison of the 645D and the WG-1.

Taking into consideration size and weight, the portability rating of the 645D and WG-1 is 50 and 93 respectively.

In many cases, it's difficult to imagine the difference between sensor dimensions purely by checking technical specs. The pic below will give you a better sense of the sensor sizing in the 645D and WG-1.

As you can tell, the 2 cameras provide different megapixels and different sensor dimensions. The 645D having a bigger sensor is going to make achieving bokeh simpler and the Pentax 645D will resolve greater detail with its extra 26MP. Higher resolution will enable you to crop shots more aggressively. The more aged 645D is going to be behind when it comes to sensor innovation.